9310 Steel Vs Carpenter 158 - Best Bolt Carrier Groups for AR15.

Assembled Bolt Carrier Group for AR-15/M16 8620 M16 style carrier Black Nitride finish Properly heat treated Final grind before plating · 9310 Steel 5. These components are Magnetic Particle Tested (MPI), High-Pressure Tested (HPT), and ground after heat treatment to ensure they can withstand harsh …. 62×39 Engraved (Both Sides) AR-15 Dust Cover!. HRC of 46 yields a 15% increase in hardness at the same toughness comparing to Carpenter 158 & 9310- Technical Data on DLC Coating Coating thickness: 2 - 4 μm (Micro Meter) or 2-4 μ (Microns) Hardness HV 0. SKU M16BCGPFN Categories AR-15 PARTS, BOLT CARRIER GROUPS, PARTS Tags. This alloy is best machined in the normalized and tempered state. The 4140 Billet Gas Key is properly torqued with Grade 8 fasteners, and properly staked to ensure reliability. 9310 alloy steel is a low carbon nickel-chromium-molybdenum case-hardening steel, with good strength and toughness properties. For each property being compared, the top bar is SAE-AISI 52100 steel and the bottom bar is SAE-AISI 9310 steel. Daido Steel News: This is the News-site for the company Daido Steel on Markets Insider Indices Commodities Currencies Stocks. Rifling: 1 Turn in 9” – Right Hand Twist. Carpenter 158 and 9310 steel are the best materials for the bolt. C158 bolt breakages are the biggest failure point for the AR-15 bolt carrier group, and is the biggest reason why C158 is not widely used outside of the AR-15. 5 Grendel 1/8 Stainless Steel Barrel & BCG Combo - 5165448797. This is where the quality can become an issue. Carpenter 158 is just ANSI P6 steel. Manufactured to precise tolerances, these high-quality replacement parts help keep your AR-15 functioning properly. Lifetime ToolCraft Warranty! Made in USA. Reactions He owned a company that built and sold AR uppers. Here’s the information on both the DLC and NiB-X coatings. Advertisement Steel studs boast a lot of advantages over their wooden counterparts, but they are weighed down with some downsides. Reviews (1) Custom Engraved AR-15 5. UPC: MPN: TOOAUTO-016; AR15Discounts 2695 7 months ago Toolcraft. 56 Bolt Carrier Group (BCG) Product Specs: Features:. They get a bad rap because when they first hit the market there were a lot that were not …. Finish: All Bolt components Shot Peened and Manganese Phosphate or Black Nitride Extractor: 4340 Steel. Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification or for. I doubt it makes any difference, but the C158 is the mil spec, so it has been tried and tested a lot more for a lot longer, so I went with that. SAE-AISI 4150 (G41500) Cr-Mo Steel SAE-AISI 9310 (1. Why 9310 instead of Mil-Spec Carpenter 158 steel? 0 0 0. Simply put… Should any of our products fail, return it to us for a brand new replacement. 56/300 Blackout: Extractor O-ring: Viton. The material composition, such as Carpenter 158 or 9310 steel, and the choice of coating, from phosphate to Diamond-Like Carbon (DLC), can significantly affect the BCG’s performance. Why 9310 Steel in an AR-15 / M16 Bolt? Why is 9310 Steel the superior option for your AR-15/M16 Bolt? Well, 9310 is actually around 7% stronger than …. 9310 steel is tougher and more impact-resistant, while 158 steel is more corrosion-resistant. The gas key itself may be 4140 steel. Includes Bolt, Bolt Carrier, Extractor Pin, Firing Pin, Cam Pin. 52 ounces and has forward assist. 17-4 PH VAR AMS 5622 Stainless Steel is a precipitation hardening martensitic stainless steel. Avoid nitride ( especially if it comes with a 9310 bolt), NiB, TiN, and most other wiz-piss finishes. Brand – Anderson Manufacturing, Caliber –. The problem is that you don't see it as much as you used to. The steel industry has advanced since the specification of Carpenter 158 but the basic premises. Bolts are most usually made from Carpenter 158 steel, but 9310 is considered the premium material because it has a higher tensile strength. BCGs are coming down in price and I want to buy a couple of good quality ones while prices are good. As mentioned C158 is the spec, although 9310 is considered a substitute. 9310 steel claims a slight advantage of toughness when properly heat …. Bearing & Gear Steel UNS# 9310 G93106 52100 G52986 ACUBE® 100 Carpenter 158 T51606 CBS-223 CBS-50 NiL K91231 M-50 T11350 CBS-600 K21940 Carpenter Acube® 100, Custom Age 625 Plus®, Custom Age 725®, Free-Cut Invar "36"®, High Permeability "49"®, HyMu "80"®, Invar "36"®, and Low Expansion "42"®,. Bolt Carrier: 8620 steel Heavy Duty M16 design Grade 8 Gas Key Screws, Staked Gas Key Material: 4140 Finish: Nickel Boron. This high-strength, low-alloy steel is also known for its excellent machinability. Adding nickel in 9310 steel makes it more resistant to stress and fatigue, while the higher chromium content in 4140 steel improves. The 308 carrier is precisely machined from case-hardened 8620 alloy steel. Case hardening allows C-158 to be very hard on the outside to prevent wear and crack formation while the inside is softer and more flexible to prevent crack propagation and absorb shock loads. Catastrophic NiB 9310 bolt failure. twitter miniloona But since you asked nicely: From Faxon: "Since the creation of Carpenter 158, the metals industry has continued to innovate, creating new blends of steels. 9310 is a published SAE standard and made by many companies. 4 million in the same p (RTTNews) - Below are the earn. Carpenter Technology advertises it as a Plastic Mold Steel (page 43). Thinking about a tool steel with high toughness like A2 which would easily. Dec 14, 2016 · As I understand it 9310 has become a common option for bolts because it is easier to get in smaller quantities than Carpenter 158. Various grades of steel make up the most common AR-15 bolt carrier groups. Barrel: 20" Fluted, Chrome Lined with A2 Flash Suppressor. Can somebody tell me what the difference is between c-158 and 9310 and why 9310 isn't mil-spec? I've seen 9310 used in some bolts and wonder if it's actually …. To accommodate this, the bolt itself is made from Carpenter No. Forend: Windham Weaponry 13” Free-Floating Railed Handguard. 56 K-SPEC enhanced dual ejector 7. 5 coil silicone wire stock extractor spring and silicone wire stock ejector spring. , Gear Expert, from IL, United States, on March 10, 2020. 223 bolt· Shot peened· Black Nitride finish· 4140 Gas Key Black Nitride finish Properly torqued with Grade 8 fasteners Properly staked to ensure reliability · 4140 Cam Pin Heat Treated Black Nitride …. These are the (3) most common BCG steels being used in today's AR/M4 industry (from what I read about). Quoted: As I understand it, Carpenter 158 is a case (surface) hardened steel where 8620 is through hardened. 05: 1500-1800 or 70+ HRC Deposition method: PVD UBM/PACVD Friction vs. These high mechanical properties are developed in sections up to 5" (127 mm) thick, making Carpenter 158 a consideration for use in very large parts requiring maximum strength, wear. 9310 and 158 have very similar chemical makeup. Posted: 3/11/2022 9:07:38 AM EDT HRC of 46 yields a 15% increase in hardness at the same toughness comparing to Carpenter 158 & 9310 Mil-Spec Extractor and Ejector Springs, Gas Rings While the two bolts have identical construction, the two coatings …. I recently purchased a Toolcraft 5. walmart pallets near me 56 Black Nitride Bolt Carrier Group was designed with strength in mind. Our proprietary bolt design, the JP EnhancedBolt™ is compatible with any AR-15 platform using a Mil-spec bolt carrier and sub-components. Im sure they wouldnt be selling it if it wasnt up to par, thanks again guys. C158 is supposed to technically be stronger than 9310, but many higher end BCG makers are now using 9310 instead of C158 for their bolts b/c they say 158 is antiquated and they have figured out how to make 9310 better than "mil-spec. The bolt itself is machined from Carpenter Technology No. Posted by Faxon Firearms Staff on May 12th 2016. We would like to show you a description here but the site won’t allow us. My (2) AR's use 9310 steel for the BCG's. lifeproof flooring trim pieces Each BCG is further fitted with a Lantac CP-R360 domed head cam pin, which are precision machined from 17-4PH …. The Relia-Bolt™ is machined from S7 tool steel and tempered with SRC’s proprietary heat-treating process, significantly …. many years back after a mass shooting there was a run on parts including bcgs and manufacturers couldn't get c158 in a steady enough supply so they looked at alternative metals including 9310. It is commonly supplied in the annealed condition with capability to harden to high strength levels by heat treating to Conditions RH 950 and TH 1050. Other caliber BCG’s available per request, simply email or call us. 5 Creedmoor, 45 Raptor, and other “standard 308 calibers” These are engraved in house. 9310 VAR also possesses solid ductility, weldability, and machinability properties. If fact, 9310 response to thin section quenching is better that Carpenter 158. PALMETTO STATE ARMORY Toolcraft Premium 5. It's easy to clean because of the finish. The alloy is also used in high-stress applications, such as heavy-duty machinery, oil and gas drilling equipment, and racing engines. polish resturants near me The bolt undergoes meticulous Magnetic Particle Inspection (MPI), ensuring reliable quality and peace of mind. on paper 9310 is stronger when heat treated correct, but given the rush of production that wasn't always. S-7 has a higher shock rating, but slightly less in the wear and abrasion than 9310 or 158. 7x42 Caliber M16 cut 9310 steel carrier Carpenter 158 steel bolt 4140 steel extractor MIL-SPEC O-ring MIL-SPEC gas rings …. Rifling: 1 Turn in 9" - Right Hand Twist. 9310 Alloy Steel (also known as AISI 9310 steel) is a low alloy steel composed primarily of nickel and chromium. In the back of your mind, you’ll know it’s not mil-spec…but it’s about half the price of the BCM. If I remember right, Carpenter 158 is an exclusive brand spec where 9310 is an ASTM or other standard. 56 Bolt is machined from Carpenter 158 tool steel; Shot peened; HPT tested/MPI marked; Black o-ring insert on extractor; High quality BCG; Nickel Bolt Carrier . Obviously, Toolcraft will make whatever the customer wants. One part of a Mil-Spec bolt is that it is made from Carpenter 158 steel, but a more prevalent bolt material on the market is 9310 steel. When choosing high-performance bolts, steel type cannot be compromised. Whether you're building a new rifle or upgrading an existing one, understanding the implications of these choices is key to optimizing your AR-15's. The most common steel used in the bolt is Carpenter 158 steel. Simply put Should any of our products fail, return it to us for a brand new replacement. Typical use is seen in applications requiring high strength and a modest level of corrosion resistance. Jan 1, 2020 · Bolt Carriers made from 8620 Steel, 6A1-4V Titanium or Aluminum. The Relia-Bolt™ is machined from S7 tool steel and tempered with SRC's proprietary heat-treating process, significantly increasing strength when compared to MilSpec Carpenter 158. 17-7 PH AMS 5644 is a semi-austenitic precipitation-hardening stainless steel that provides good corrosion resistance, good formability, and high strength. Can you use steel wool on hard anodized cookware? Visit TLC to learn whether you can use steel wool to clean hard-anodized cookware. Summary; 52100 Steel (100Cr6) 9310 Steel (AMS 6265) 8620 Steel (AMS 2301) M50 Steel (AMS 6491) BG-42® (AMS 5749) XD15NW® Bar; XD16N Bar; CX13VDW;. It is known for its strength, toughness, and wear resistance. All of this makes 9310 excellent for aircraft parts. The bolt face is made from 9310 tool steel, shot peened, and magnetic particle inspected. Typically, M50NiL is for applications requiring both surface strength and fatigue resistance. 9310; If this is your first visit, This thread is about 9310 vs 158! 04-29-17, 18:42 #128. Three of the cylindrical samples were heat treated prior to deformation at a temperature of 922 K (649 C) for 4 hours to observe its effects on the deformation kinetics and note any comparisons or differences from. Learn more about carbide inserts Cutting-Edge Geometry Parameters. Nov 16, 2013 · Now the bolts, they are made with AISI 9310 Steel, 9310 is better suited for an application such as a M16 bolt. Apparently the 1b1b6 has a "158 Carpenter Steel bolt", opposed to a "AISI 9310 alloy steel" Bolt on the Nitrided one I'm looking at. Their top of the range model is silver colored and comes with a nickel finish. When you temper a low-alloy steel like 8620, 9310 or Carpenter 158 at 1,050 degrees Fahrenheit, you kill their strength. Show 40 post(s) from this thread on one page Quote: Originally Posted by vicious_cb. His company started the use of 9310 for AR bolts as a better steel type then Carpenter 158 which most high end AR15/M16 use 9310 now a days. Rifling: 1 Turn in 24” – Right Hand Twist. Both normalized SAE-AISI 9310 and SAE-AISI 4340 steel are iron alloys. The rest of the tool steel industry has moved on to better steels. Carpenter 158 is more common in top tier carrier groups. The material and grooves cut into the locking lugs (to relieve stress) make a bolt that is built to last in a suppressed full auto system. 9310 has a high hardenability, high core hardness and high fatigue strength. Wilson combat 9310 steel - on sale for $98. Nickel and chromium enhance the steel’s toughness and wear resistance, while molybdenum promotes hardenability and high-temperature strength. The Guardian uses 9310 steel, which is approximately 7% stronger than Carpenter 158. Go look up tempering diagrams for Carpenter 158 (a. AISI E9310 Steel, single quenched and tempered at 230°C (450°F), 1. entry level medical sales jobs atlanta Typically, the carrier itself is machined from 8620 or 9310 steel, with the bolt itself being Carpenter 158. 9310 Steel Round Bar is a nickel-chromium-molybdenum carburizing steel. Mil-Spec Extractor and Ejector Springs, Gas Rings. Starting with a 9310 Steel Bolt, which is aircraft-grade material, this bolt has a high core strength rating, a high fatigue strength, and a high hardenability rating. Reduces wear during metal to metal contact. 136) Carrier has forward assist serrations. The bolt is high pressure tested (HPT) and magnetic particle inspected (MPI) to ensure it meets the highest standards of quality and safety. Furthermore, many other firearms designs, semi-auto or full-auto alike, already incorporate 9310 steel into their schematics. There are also a lot of BCGs out there that are made with 9310 steel. This is our standard Nickel Boron Coated Bolt Carrier Group for the 5. What Is the Difference Between 9310 Steel and Carpenter 158 Steel?. We use a 9310 Vac-Arc steel Bolt over the Mil-Spec Carpenter 158 Bolt because it's stronger and after many test firings and torture tests we've found it to not only last longer but to be more durable. It also exhibits good strength, high toughness, hardenability, core strength, and very high fatigue strength. This is an older thread, you may not receive a response, and could be reviving an old thread. 9310 Tool Steel is known to be brittle at room temperature, while …. Prices for BCG's with 9310 bolts …. Supposed to be three times more impact resistance than Carpenter 158 There has been an increase use in 9310 steel for bolts over C158. 7x42 Bolt Carrier Group (BCG) Product Specs: 12. This is significantly stronger than the Carpenter 158 steel called out by the military and vastly superior to many materials used in civilian bolt production. IIRC, the original specifications for the GI issue model were for AQ-9310 (aircraft quality). The 9310 has some molybedenum while the P-6 has more chrome and nickel. The 308 Relia-Bolt™ is made of robust 9310 nickel-chrome-moly alloy steel. Another important factor to consider when comparing these two tool steels. It is more common though for the bolts to …. We slapped in a BCM BCG and the failures went away. Im also kind of skeptical that 9310 is consistently 7% stronger than Carpenter 158, or that it really matters much even if it is. , Canada, Mexico, Shanghai, Singapore, France, and the U. C158 is a proprietary formula and only made by one company. The bolt is machined from 158 tool steel for ultimate durability, has a Type 2 Bolt Face and a black O-ring insert on the extractor. This thread is about 9310 vs 158! 04-29-17, 18:42 #128. It is a nickel-chrome-molybdenum case-hardened steel, and it's harder than Carpenter 158. Therefore, there is no SAE standard for it and the sole manufacturer of this steel is a company called Carpenter Technology in Pennsylvania. Quoted: I have seen a lot of discussion on this forum about BCGs and the steel used in the actual bolt. Perhaps look for a P6 supplier instead? Personally if I was making a new AR-15 bolt I'd go with S7 should handle the stresses of the firing cycle alittle better. C-158 is simply Carpenters trade name for P-6 tool steel. All are also shot peened to reduce susceptibility to metal fatigue. Posted: 1/1/2020 3:57:10 PM EDT [#18] As long as the bolt isn't 8620, the carrier is usually made from this but after Sandy Hook a lot of shady fly-by-night manufacturers. It is carburizable for wear resistance and fatigue strength, while its inner core maintains high fracture toughness. I discuss the steel differences between carpenter 158 and 9310 from the AR Performance Super bolt. mogul auto of memphis llc Complete Black Nitride / Melonite Bolt Carrier Group. Fully treated, Carpenter 158 attains a core strength of approximately 160 ksi (1103 MPa) tensile strength with a yield point of about 135 ksi (931 MPa). 9310 can come in a couple different variations and ams specs such as AMS 6265 and AMS 6260. 9310 vs 158 steel both have advantages and disadvantages that should be considered when deciding which type of steel to use. Brinell Hardness: 200 to 380: 540 to 610:. (RTTNews) - Below are the earnings highlights for Carpenter Technology Corp. ENGRAVED AR Bolt Carrier Group (BCG) - Bullet M16 Cut 9310 Steel Carrier Carpenter 158 Steel Bolt4140 Steel Extractor Mil-Spec O-Ring Mil-Spec Gas Rings4140 Steel Cam Pin8740 Steel Firing Pin with Hard Chrome Finish Magnetic Particle Inspected Engraved …. Expert Advice On Improving Your Home Videos Latest View All Guides La. Engraved AR Bolt Carrier Group (BCG) – 3% M16 Cut 9310 Steel Carrier Carpenter 158 Steel Bolt 4140 Steel Extractor Mil-Spec O-Ring Mil-Spec Gas Rings4140 Steel Cam Pin8740 Steel Firing Pin with Hard Chrome Finish Magnetic Particle Inspected Available …. SAE-AISI 4130 (SCM430, G41300) Cr-Mo Steel SAE-AISI 9310 (1. 9310 is supposed to be harder and more durable if heat treated correctly. It has high hardenability, high core hardness, and superior fatigue strength. 8SPC II BCG made for Palmetto State Armory OEM use. Common specs for bars, forgings, and tubing are AMS 6415, AMS 6484 and MIL-S-5000. hillside apartments shreveport la  Material: Case Hardened 9310 Steel. Few of applications for carpenter-158. When annealed, 9310 has good ductility, machinability, and cold working properties. Last time I checked Toolcraft makes carriers, but they do NOT make bolts. But probably also more expensive. 158 alloy attains a core strength of approximately 160. PSA built this rifle to be as simplistic as possible with features like the forward assist to help with malfunctions and reloads and a dust cover to prevent dirt, carbon, grass, and precipitation. Cam Pin: 8620 steel Finish: Nickel Boron. 1) Actually, Carpenter 158 is also primarily a mold steel. Jan 16, 2021 · Been examining the differences between C158 and 9310 steel bolts for the AR platform, and now I'm more confused than before. Pyrowear® 675 stainless is a carburizing, corrosion resistant steel designed to provide a case hardness in excess of HRC 60 combined with a tough, ductile core. Find here carpenter 158 steel materials, C-158 forging, rolling , tool, die, mould, chemical analysis, composition, hardened, tempered manufacturer, supplier +91 22 6633 0000 +91 7045084307; sales@jayantimpex. better actually however, the heat treating must be done right. IMO, the heat treat is probably more important than the alloy comp. This is case hardening steel, which is tough and as standalone responds little to heat treatment, but once case hardened, can be made into very tough, but on the surface very hard part. I know 9310 alloy steel is very strong (they make differential ring and pinion gears for professional class drag racing cars. IF, that is true, that would lead to believing that 8620 was the standard before this alloy was available (which is what many believe). Find out about the best drill bits for hardened steel in this article. fnaf 1 minecraft layout Indices Commodities Currencies Stocks. 9310 also possesses solid ductility, weldability, and machinability properties, and is an excellent metal for use in heavy-duty machinery, case hardened components, and gears. I bought a Carpenter steel bolt years ago from Fulton Amory more out of convenience than choice (back ~1998 or so. After quenching and tempering, Grade 3 has surface and core hardness of HRC 58-60, UTS of 325-335/2245-2310 ksi/MPa, YS of 255-265/1760-1830 ksi/MPa, El of 7-9 percent, RA of …. Posted on October 16, 2023 05:10:01 AM | Views: 628. Tensile Strength: 910 MPa Yield Strength: 570 MPa. I also know that it's possible for high grade 9310 steel to be stronger than Carpenter 158 steel, if it's heat treated properly. You should know that many would say. When choosing between the two, it's important to consider your project's specific requirements and needs. Simple, 9310 is an AISI standard grade of tool steel which, when properly treated, actually makes it about 7% stronger than “mil-spec” Carpenter 158. It undergoes shot peening for increased toughness and longevity. Low Plasticity Roller Ball Burnishing:. Carriers are important and all, but when was the last time your carrier broke?. A new manufacturer of a "high quality . Why 9310 instead of Mil-Spec Carpenter 158 steel? 12 4 3. Barrel: 16" M4 Profile, Chrome Lined with A2 Flash Suppressor. Rifling: 1 Turn in 10" - Right Hand Twist - 6 Lands & Grooves. Can somebody tell me what the difference is between c-158 and 9310 and why 9310 isn't mil-spec? I've seen 9310 used in some bolts and wonder if it's actually inferior. AISI 9310 alloy steel is a low alloy steel …. has decided to maintain its Outperform rating of Carpenter Tech (NYSE:CRS) and raise its price target from $50. Both are modern ultra-high strength steels designed specifically for applications where high strength and durability are of paramount importance. HPT (High Pressure Batch Tested) and MPI (Magnetic Particle Inspected). Typically the AR15 community looks for C-158 which is a blend of steel from Carpenter. Order 9310 from Sullivan Steel today. Carpenter 158 comes from one place, and one place only, Carpenter Technology of Reading PA. Machined from carpenter 158 steel. from it!) but on the M16/M4 the mil-spec is C158 - what is. This will quickly move the solution beyond the simple question of which steel is best, for the best steel if applied out of context will not perform. S7 tool steel contains higher carbon and chromium levels, with higher hardness and wear resistance. AISI 9310 steel can be sourced from any number of foundries, Carpenter being one of them. And unlike Carpenter 158, which is …. The Carpenter 158 Bolt is heat treated, shot peened, precision ground for perfect dimensions, and MPI Tested. 56 NATO Nickel boron finish M16 cut 9310 steel carrier arpenter 158 steel bolt 4140 steel extractor MIL-SPEC O-ring MIL-SPEC. Jan 14, 2020 · The Relia-Bolt™ is machined from S7 tool steel and tempered with SRC’s proprietary heat-treating process, significantly increasing strength when compared to MilSpec Carpenter 158. For each property being compared, the top bar is grade 6 titanium and the bottom bar. One of the main differences between 1080 and 5160 steel is their composition. It has a high hardenability, high core hardness and high fatigue strength, all of which make it ideally suited for critical aircraft engine gears, automotive applications, structural components, gears, rods, heat-treatable shafts, high performance helicopter transmission gears, and other components. Those are just the specs that AIM lists to compare with. autentico core practice workbook 2 answers View Profile View Forum Posts View Articles Member Join Date Jun 2010 Location MN Posts 947 Feedback Score 6 (100%) Originally Posted by SilverBullet432. Both are exceptionally strong and widely used in different industrial applications. com Carpenter 158 came first & was adopted as the mil-spec steel for the bolt, and 9130 was developed later. I'd still sooner use a nitride carrier over all others, with chrome second and other coatings including NiB down the list somewhere. Read this article to find out how to keep carpenter bees from drilling holes in your home and damaging it. Our products carry a lifetime warranty. The material is vacuum degassed and is also available in consumable electrode vacuum remelting process. A radius is cut into the top of each lug with another radius at the back of each lug where it meets the bolt body. 4340 VAR is a premium melt aircraft quality steel with excellent ductility, toughness and high strength levels. Barrel: 16″ M4 Profile, Chrome Lined Barrel with Titanium Nitride Finish and A2 Flash Suppressor. The decision depends largely on the specific requirements of your application. C158 minus proprietary source + molybdenum = 9310, a slightly stronger steel with lower quench rates to be come hard and less likely to become brittle than C158. For applications that require high strength, durability, and resistance to thermal shocks, C158 bolts are the ideal choice. 56 NATO | 300 Blackout: Extractor O-ring: Cam Pin Finish: Black Nitride: Firing Pin Material: 8740 Steel; Hard Chrome Plated: Manufacturer: Toolcraft. There are a couple of different popular bolt steels, notably 9310 and 158 Carpenter steel. Having had a C-clip get loose in a car I used to have, I can believe …. 5” Medium Profile, Chrome Lined with A2 Flash Suppressor. Mil-Spec Carpenter 158® steel, shot peened for increased strength per Mil-Spec. S7 is an air-hardening steel, which means it can be cooled very slowly in air and …. 418 Greek Ascoloy Stainless Bar is a modification of the martensitic stainless steel 12% chrome family. It has high core hardness and high fatigue strength. Until a few years ago, most would either c. The Mil-Spec M16 Bolt Carrier Group is a true exemplar of Mil-Spec BCGs, designed for those who demand the utmost reliability and quality. P-6 and 9310 are very close in composition. Mar 5, 2010 · Carpenter 158 is just ANSI P6 steel. Features: SAE 9310 steel construction for superior resiliency and extended lifespan. The higher hardness of Carpenter 158 makes it more suitable for use in applications where wear resistance is important, such as cutting tools and dies. AR-15/M16 Bolt Assembly HPT/MPI Carpenter 158 Steel | SOLGW. An age hardenable nitriding steel with the core strength capability permits to be developed while the surface is being nitrided. 16-inch government profile, chrome-lined, cold hammer-forged barrel made from FN’s proprietary steel; M16-style MIL-SPEC bolt carrier group and HPT/MPI-tested bolt made from Carpenter 158; Mid-length gas system with H buffer and pinned gas block; MIL-SPEC forged aluminum receiver in black anodize; M16-style bolt carrier group made from …. If cost is a major consideration for your project, Carpenter Steel. This tougher than mil-spec bolt, when paired with Toolcraft quality and the Ionbond DLC finish is quite likely the ultimate hard use bolt carrier group!. 8620 and 9310 have good toughness, which means they can withstand high-stress levels without breaking. UPC: MPN: TOOAUTO-016; Dirty Bird Industries 168 15 months ago Toolcraft AR-10 / 308 / 6. Greek Ascoloy supplied by Rockwell Industries retains corrosion and antioxidants and has usable strength and creep resistance to 1050 degrees F (566 ̊C). How reliable is the AR-15 bolt? When properly maintained, the AR-15 bolt is highly reliable and has been used extensively in military, law enforcement, and civilian applications. A manufactured in America component, this bolt carrier weighs 11. 9310 VAR AMS 6265; 4340 VAR AMS 6414; Aermet® 100 AMS 6532; CBS-50 NiL® AMS 6278; Carpenter 158® Pyrowear® 53 is a double vacuum melted premium alloy steel. IF the machine work and heat treat are similar, it will have …. Gas key features Grade 8 hardened fasteners, staked per MilSpec. 9310 is very common in commercial bolts. magnetic-particle-inspected, and, before all that, precisely machined and heat-treated. Posted: 3/11/2022 9:07:38 AM EDT [#1] This is a debated topic. Bolt Material and Testing: Carpenter 158, MPI & HPT; Price: $450; Rubber City Armory Titanium Complete Bolt Carrier Group with adjustable gas key. Following machining, the process includes a heat-treated and shot-peened finish. Bolt Material Carpenter 158 Steel. Barrel: 16” Chrome Lined with A2 Flash Suppressor. Much more than typical Parkerizing, phosphating Add to Cart. Keywords: black rifle depot reviews, ar 15 builders forum, 9310 steel vs carpenter 158, ghost gunner forum, mean ma lock. The chances of that mattering for an average shooter that puts even a few thousand rounds downrange a year is super slim. The Nickel Boron coating has a Rockwell hardness between. Add to Wish PSA 20" Rifle-Length 6. Nitriding can come close to the temper temperatures and maybe one steel is more sensitive than the other. M16 Full Auto Style for increased mass and lock time. Mil-Spec Manganese Phosphate finish, MPI tested. I say this with disbelief, as I am under the mistaken impression that I am still new to. Needless to say, 9310 is more easily obtainable. Our Solutions Industries Resources Xometry Enterprise How Xometry Works Become a Supplier. Finish: All Bolt components Shot Peened and Manganese Phosphate or . 9310 Vac Melt is a high quality carburizing steel produced by a vacuum consumable electrode process. Toolcraft BCG Nickel Boron AR308 …. Faxon Firearms TiN (Titanium Nitride) 8620 steel and bolt Carpenter 158 Mil-Spec friction reducing, corrosion resistant, anti-galling coating also known as Parkerizing. SAE-AISI 52100 (G52986) Chromium Steel SAE-AISI 9310 (1. How is the AR-15 bolt different from other rifle bolts?. Christopher Steele, author of the eponymous dossier, has not had a fun couple. 9310 is slightly stronger than C158, much easier to heat treat to the desired toughness well, and. Pyrowear 675 is a high strength stainless steel designed for gear application. The bolt itself is subjected to the highest heat, pressure and friction when live rounds are fired. 9310 steel specializes in high core strength applications. Carpenter 158 Melonite / Nitride M16 Ar15 Bolt Carrier Group. For each property being compared, the top bar …. Recommended practice for maximum core toughness. If you're drilling through hardened steel, you'll want to use a cobalt drill bit. Carpenter 158 is a case (surface) hardened steel where 8620/9310 is through hardened. Complete Mil-Spec Bolt includes: Mil-Spec Carpenter 158® steel bolt Shot Peened for Increased Strength per Mil-Spec. candii kayn kenomo " Faxon uses 9310 in their bolts and so does Noveske. Bolt Carriers are made from 8620 Aircraft Quality Steel. "Customers want modern designs, but the traditional stores do not offer that variety" The way Indians buy furniture seems to be changing. The carrier is cut to full dimensions and is machined from 8620 steel and ground to exact Mil-Spec dimensions. This is an AISI standard grade of tool steel that, when properly heat-treated, is approximately 7% stronger than Carpenter 158. However by comparison to Carpenter 158, AISI 9310 has several elements present in its composition that are detrimental to fatigue while not being evident in the physical properties. The bolts they use are top of the line. And it has a Mil-Spec phosphate, matte black finish. Exposing an 8620 article that …. Subscribe to be notified when this product is back in stock. Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec. As our top value, we're proud to create a culture of safety in everything we do. S7 provides a 75% increase in tensile strength, and nearly 60% improvement in yield strength. Another difference is the strength and toughness levels of the alloys. I would go either Carpenter 158 or 9310 over S7. Posted: 3/15/2020 9:38:43 PM EDT [#13] I ran the complete JP FMOS bolt carrier with my first rifle. Additionally, Carpenter 158 has a higher tensile strength and yield strength than 8620 tool steel, which means it can handle heavier loads and higher stress. It's also coated with QPD nitride, providing excellent resistance to wear and corrosion. If you want to take the high road–and debate more effectively in the process–utilize the "steel man" argu. In high bolt thrust applications, it has been the best option for steel bolts. 9310 is a premium quality alloy carburizing steel, containing nickel, chromium and molybdenum. Material: Case Hardened 9310 Steel. 125″ Head Space Maxim Firearms - 9310 Steel Stag Arms - Material not listed Underground Tactical - 9310 AQ Steel. 158 and 9310 are similar in qualities. Simple, 9310 is an AISI standard grade tool steel which, when properly treated, actually makes it about 7% stronger than “mil-spec” Carpenter 158. Carbon steels: 1015: 72%: 1018: 78%: 1020: 72%: 1022: 78%: 1030: 70%: 1040: 64%: 1042: 64%: 1050: 54%: 1095: 42%: 1117: 91%: 1137: 72%: 1141: 70%: 1141 annealed: 81%. Grade 6 titanium belongs to the titanium alloys classification, while SAE-AISI 9310 steel belongs to the iron alloys. Feb 15, 2020 · The difference is in the steel. yarddiestyle boyfriendtv Look for bolts made from durable materials such as 9310 steel or Carpenter 158 steel, as these offer enhanced strength and longevity. The extractor is machined from milspec tool steel which is more reliable than typical MIM (Metal Injection Molded) extractors and features a. This is sought after due to its lower cost and in a normal market, plentiful abundance. C-158 is very hard on the outside to prevent wear and crack formation while 8620 inside is softer and more flexible to prevent crack propagation and absorb shock loads. For each property being compared, the top bar is SAE-AISI. Nitrided is definitely easier to clean, but a parked BCG is far from difficult to clean. But do not assume that because the 9310 bolts are not Milspec that they are junk because it is just the opposite, the 9310 bolts are better than the Carpenter 158 bolts. This bolt steel has served the U. I meant the difference between Carpenter 158 and 9310. Mar 26, 2015 · Bet it is cheaper too. The firing pin may be 8740 steel and chrome-plated for longevity. A few common durable types of steel are Carpenter 158, 9310, and 8620. Rifling: 1 Turn in 10” – Right Hand Twist – 6 Lands & Grooves. There are a few key differences to note when comparing the two materials. Carpenter Technologies' 158 blend of steel was selected as it provided adequate strength and wear characteristics. 158®) is a chrome-nickel alloy steel best suited for parts subject to heavy shock and wear. This Toolcraft DLC Bolt Carrier Group comes complete with a 9310 grade tool steel bolt. At Grid Defense, we provide a diverse range of Bolt Carrier Groups designed to deliver exceptional reliability and performance for your AR-15 rifle. 107 pill white oval Carpenter has never made or even tested a single bolt, and doesn't warranty any of the bolts manufactured …. Bolt Carriers made from 8620 Steel, 6A1-4V Titanium or Aluminum Keys made from 4130 Steel Bolts available in 9310 Steel or Carpenter 158 Our products carry a lifetime warranty. As a result, Carpenter 158 steel is continued to be the gold standard by which all other AR-15 steels are judged. As I understand it 9310 has become a common option for bolts because it is easier to get in smaller quantities than Carpenter 158. Firing Pin: 17-4 Stainless Steel Bolt Assembly: Machined from case hardened 9310 steel then shot-peened, heat treated & 100% MPI tested per US Mil-Spec *Properly heat treated 9310 steel is on average 8% stronger than Mil-Spec standard Carpenter 158 steel, making the bolt stronger than the Mil-Spec standard* Extractor: Billet 4140. The higher carbon content of 1080 steel makes it more complicated than 5160 steel, but it is also more brittle and difficult to forge. Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt) Carrier has forward assist serrations. 2) This is one of the reasons why AISI 9310 is a good choice for bolts, it has flat hardenability curve that gives uniform characteristics across varying cross sections. HPT Standard 4 coil extractor spring and standard ejector spring vs. This brief review aims to provide a clear understanding of its benefits, applications, and advantages. 158 steel, the mil-spec alloy favored by the military. Carpenter 158; The Faxon Blog and Podcast. It is a nickel-chrome-molybdenum case-hardened steel, and it’s harder than Carpenter 158. The physical properties of Carpenter 158 and 9310 are similar, and as long as the finished product passes gauging. The firearmhistory had some great info. Barrel: 16″ Superlight with Melonite QPQ Finish and A2 Flash Suppressor. Carpenter 158 9310 - MAY be harder than Carpenter 158 Nickel baron (easier to clean) Titanium BCG with an S7 bolt. Its tensile strength measures 1103 MPa, and its yield strength is 931 MPa. by comparison to Carpenter 158, AISI 9310 has several elements present in its composition that are. 95 was 9310 steel AO Precision Premium Phosphate Bolt Carrier Group - 158 HPT/MPI This mil-spec bolt carrier group goes through rigorous quality control tests before it's made available for purchase, including high pressure testing and magnetic particle inspection. Check out this helpful article for details on the various uses for steel wool. 9310, however, has a lower carbon content but contains …. p3017 prius Carpenter 158 is mil-spec, but many companies nowadays are opting for "stronger" steels like 9310 and S7 which are both. View Profile View Forum Posts View Articles Member Join Date Jun 2010 Location MN Posts 947 Feedback Score 6 …. Creating Steel - Creating steel involves removing the impurities from iron. Carpenter 158 supplied by Rockwell Industries is ideally suited for jobs where an extra core strength is required. M16 Carrier-8620 Bolt-9310 MPI & HPT Tested Shot Peened Upgraded Extractor Spring with o-ring Made in the USA by a quality manufacturer. Strengths and Weaknesses of Both Steel Types. Grade 3 is a super-high strength steel for powertrain and transmission components such as gears, crankshafts, camshafts, axle shafts, connecting rods, etc. condition, A-21 is the world’s first and only truly stainless carburizing steel, developing a deep, hard, stainless case and a strong, tough, ductile core. Indeed, after a protracted period of underperformance from sto. One of the main applications of AISI E9310 is manufacturing aircraft components, including gears, shafts, and bolts. The downside of 9310 steel is that is has to be properly heated treated when used for. Normalizing: Heat uniformly to 1650 …. difficult to machine and extremely temperamental in behaviour. 9310 steel has a high core & fatigue strength rating, a high …. Home / PARTS / AR-15 PARTS / AR15 / M16 BCG, NITRIDE. When customers confer with us on 9310, sometimes they share their challenges with inventory accuracy. It's also made by Carpenter Technology Corporation. High Pressure Tested (HPT) Magnetic Particle Inspected (MPI) the bolt is made from 9310 steel, and the rear body is made from 7075 (T6) aluminum to aid in weight reduction. 9310 is easier to machine and is more dimensionally stable in the heat treat process, this equates to better made parts. 9310 steel claims a slight advantage of toughness when properly heat treated which gives. 56 Nickel Boron BCG with Carpenter 158 Bolt PSA 5. Carrier Finish Salt Bath Nitride. fourplex for sale sacramento The bolt is Carpenter 158 steel and the carrier is 8620 steel. The first data sheet that mentions C-158 (or Carpenter No. Nitride is my choice over phosphate as it is an actual treatment and it's generally "slicker" and more corrosion resistant. Its combination of high alloy and low carbon content can achieve high core. (Carpenter 158, 8620, 9310 and 4130) at 1050F vs 350F draws the hardness and tensile strength way back. Made from Mil-spec Carpenter 158 steel, this BCG is built to accommodate heavier grain cartridges, such as subsonic. May 27, 2023 · This Toolcraft DLC Bolt Carrier Group comes complete with a 9310 grade tool steel bolt. Here are the specs: Coated Inside & Out With UCT's EXO NiB Milspec Carpenter No. There seems to be many out there that dismiss 9310 steel bolts as inferior and use the argument that it is. Above: SpiceTac specifies MIL SPEC Carpenter 158 steel for the bolts in our Diamond DLC BCGs. M16) bolt carrier installed in a standard semi-auto AR-15 will not make the gun fire full-auto. Carpenter 158 is available for an additional charge. When comparing 9310 vs 158 bolts, 9310 steel bolts provide a more reliable and durable base metal. Toolcraft Logo'd Carpenter 158 Nitride Full-Auto Bolt Carrier Group. both more suitable for bolts than 8620. goshen akitas It has a high hardenability, high core hardness and high fatigue strength, all of which make it ideally suited for critical aircraft engine gears, automotive applications, structural components, gears, rods, heat-treatable shafts, high performance helicopter …. DLC isn't that bad but it's still not as good as a phosphate carrier with a chrome-lined bore. A quality AR-­15 bolt is usually constructed from Carpenter 158 or 9310 steel. An alloy providing high hardness and strength combined with exceptional ductility and toughness. Wilson combat has a 9310 steel Bolt Carrier Group on sale for $98. P6 mold steel), 9310, 8620 or 4130, and note the difference in tensile strengths of those alloys between a 350F temper and a 1050F temper. DLC coated for exceptional surface hardness and lubrication, all while preserving a…. AR-15 bolts are usually made of high-strength steel alloys such as Carpenter 158 or 9310 steel. BCA's Bolt carrier groups are MPI inspected.