Carpenter 158 vs 9310.

High Strength Stainless Steels. An alloy is generally considered a high strength stainless steel when it meets several key requirements. First, it must have an ultimate tensile strength (UTS) of 225 ksi (1550 MPa) or more, and a minimum yield strength (YS) of 200 ksi (1378 MPa). Tensile ductility must be good, with a minimum 10% elongation ...Toolcraft Logo'd Carpenter 158 Nitride Full-Auto Bolt Carrier Group . Rating: 91%. Regular Price $129.99 Special Price $99.99. Add to Cart. Add to Wish List Add ... 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. 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.The 9310 steel is another common material for bolts and carriers, but it’s cheaper and not as strong as the Carpenter 158. The tensile strength of 9310 steel comes in at 910 MPa, while its yield strength is 570 MPa. Finally, the 8620 steel is the cheapest option, and you can usually find it on the carrier, not the bolt.

Enter 9310. This is an AISI standard grade of tool steel that, when properly heat-treated, is approximately 7% stronger than Carpenter 158. With heat treatment, ...SAE 9310 is even harder and with C158 are popular in top tier systems. ... Carpenter 158 is more common in top tier carrier groups. It is harder and stronger. 9310 is a very good steel too. both more suitable for bolts than 8620. Save. This is an older thread, ...

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. S7 provides a 75% increase in tensile strength, and nearly 60% improvement in yield strength.-See it at Sharps here. Low Plasticity Roller Ball Burnishing:

For instance; PSA, Aero Precision - both DPMS pattern- offer receivers, barrels, BCG's on their websites. What if I want to get a 3rd party BCG because of different specs - carpenter 158 vs 9310 bolt. Then - I assume the AR10 BCG will not run in …Fully treated, Carpenter 158 attains a core strength of approximately 160 ksi (1103 MPa) tensile strength with a yield point of approximately 135 ksi (931 MPa). 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 or Carpenter 158 Steel: Bolt Finish: Nickel Boron: Caliber: 223/5.56/300 Blackout: Extractor O-ring: Viton; Mil Spec: Carrier Material: 8620 Steel, Toolcraft Proprietary: Carrier Finish: Nickel Boron: Carrier Design: M16 Full Auto Style: Gas Key Material: 4130 Steel: Cam Pin Material: 4140 Steel:158 vs 9310. there plenty of threads on that Sent from my SM-G900V using Tapatalk ... Bolts are carpenter 158 or 9310. The carrier is 8620 (should be). Where are you seeing bolts made from 8620, or carriers and keys …

Sep 6, 2023 · Conclusion. In conclusion, 9310 and 158 steel have unique properties and characteristics that make them ideal for certain applications. 9310 steel is tougher and more impact-resistant, while 158 steel is more corrosion-resistant. When choosing between the two, it’s important to consider your project’s specific requirements and needs.

Bren · #2 · Aug 21, 2019. I looked at a couple of PSA kits recently and the only difference was that one had a 9310 bolt and one had a C158. 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.

Available in either 9310 or C158 Steel Bolt. Toolcraft 5.56 NATO Black Nitride Bolt Carrier Group is a Full-Auto M16 BCG manufactured using the finest U.S-sourced raw materials. The Black Nitride coating vastly increases the hardness of the steel, prevents corrosion, is highly resistant to wear, will not flake (it’s not a coating, it’s a ...... 9310 alloy steel as an acceptable bolt material and substitute for Carpenter 158 (Carpenters brand name AISI P6 Spec mold steel). 8620 Carrier. 9310 Bolt MP ...As to the argument about 9310 not being mil-spec for the bolt, that's true. But, properly done 9310, as with one of the suppliers listed is at least as good. Mil-spec does not always mean better, sometimes it does. Toolcraft offere both 9310 & C-158. The others offer only 9310,,Typically, the carrier itself is machined from 8620 or 9310 steel, with the bolt itself being Carpenter 158. The firing pin may be 8740 steel and chrome ...In a rifle bolt there are only two things we need to be concerned with: the physical properties of the steel (hardness, strength, elasticity, etc), and shape. The physical properties of Carpenter 158 and 9310 are similar, and as long as the finished product passes gauging. the shape is correct.15/16" x 144" Stainless Steel Carpenter 158 GP. Weight: ~ 30.29 Lbs/pp. Price: $211/pp. THIS MATERIAL IS IMMEDIATELY AVAILABLE. *photo is not of actual material.Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.

May 12, 2016 · It has been the "Mil-Spec" since. Since the creation of Carpenter 158, the metals industry has continued to innovate, creating new blends of steels. 9310 is a AISI standard grade of tool steel that makes it about ~7% stronger than "mil-spec" Carpenter 158 steels, when appropriately treated. Complete Black Nitride / Melonite Bolt Carrier Group. Smooth & Protective Nitride coating. M16 Carrier-8620 Bolt-9310 MPI & HPT Tested Shot Peened Upgraded ...Jul 17, 2014 · Posted: 7/17/2014 3:12:39 PM EDT. Sharps' Relia-Bolt has significantly come down on its price since its unveiling around the first of the year due to now being only $79.99. Being an S7 tool steel bolt with a NP3 finish for a hair less than $80, I decided to order one to try out in my upcoming build. I ordered it early Monday Morning, it shipped ... Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.I've seen 9310 used in some bolts and wonder if it's actually inferior. Is there technical data to show that c-158 is superior? Carpenter 158 Vs. 9310 - Page 11There are different grades of 9310. Vac Arc being the highest. More and more bolts are being made from it because of availability. 158 is controlled by Carpenter and you have minimum weight orders to meet or they will not sell to you. Some say 9310 has a slight advantage over 158, but looking at the chemical makeup, they are very similar.

Carpenter has never made or even tested a single bolt, and doesn't warranty any of the bolts manufactured using it's 158 steel. Conversely, LWD provides a lifetime guarantee on the bolt they engineered, tested, and manufactured using 9310. Carpenter's sales and profits are guaranteed by mil-spec mandates, regardless of final product performance ...

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. Simply put Should any of our products fail, …Apr 29, 2017 · 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 …Jun 29, 2013 · A little more expensive, but easier to heat treat with little if any distortion. You can get 55 c scale with S-7 air quench. The other two have to be done in a carbon gas atmosphere . S-7 has a higher shock rating, but slightly less in the wear and abrasion than 9310 or 158. 9310 or Carpenter 158 Steel: Bolt Finish: Nickel Boron: Caliber: 223/5.56/300 Blackout: Extractor O-ring: Viton; Mil Spec: Carrier Material: 8620 Steel, Toolcraft Proprietary: Carrier Finish: Nickel Boron: Carrier Design: M16 Full Auto Style: Gas Key Material: 4130 Steel: Cam Pin Material: 4140 Steel:9310 Steel 9315 Steel 9315 Steel 9395 Steel 9395 Steel 9420 Steel 9420 Steel 9440 Steel 9440 Steel 94B17 Steel 94B17 Steel 9860 Steel 9860 Steel 98B45 Steel ... Carpenter No. 883 Steel Carpenter No.158 Steel Carpenter O1 Steel Carpenter O1 Steel Carpenter Pyrowear 675 Steel Carpenter Pyrowear 675 Steel Carpenter S2 SteelHRC 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 vary slightly. Here’s the information on both the DLC and NiB-X coatings.If fact, 9310 response to thin section quenching is better that Carpenter 158. And, taking the leap between this statement:". . . 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 . . ." and this statement:If fact, 9310 response to thin section quenching is better that Carpenter 158. And, taking the leap between this statement:". . . 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 . . ." and this statement:C-158 is simply Carpenters trade name for P-6 tool steel. P-6 and 9310 are very close in composition. The 9310 has some molybedenum while the P-6 has more chrome and nickel. 9310 is about half the cost of P-6. Which is better? Don't know, I barely made it through that class. IMO, the heat treat is probably more important than the alloy comp.

Strengths and Weaknesses of Both Steel Types. While 9310 Tool Steel and Carpenter Steel have exceptional properties, they also have weaknesses. 9310 Tool Steel is known to be brittle at room temperature, while Carpenter Steel has a lower resistance to corrosion and oxidation. If cost is a major consideration for your project, Carpenter Steel ...

kbd512. · #7 · Jun 24, 2014. I believe that the SAE 9310 steel is either slightly superior or slightly inferior to Carpenter 158 steel, in terms of tensile strength. The heat treatment process must be more closely controlled with 9310, from what I've read.

The truth is, the standard Mil-spec C-158 (Carpenter 158) bolt has a number of factors limiting its performance, not the least of which is that the life expectancy of such bolts is only about 6,000 rounds. In fact, standard bolts will start to show stress cracks on the locking lugs adjacent to the extractor cut after only 3,000 rounds.Carpenter bees may seem harmless, but they can cause significant damage to your wooden structures. These bees bore holes into the wood and lay eggs, which can weaken the structure and make it prone to collapse.For applications that require excellent toughness, wear resistance, and uniform hardness, 9310 steel bolts are a great option. For applications that require high strength, durability, and resistance to thermal shocks, C158 bolts are the ideal choice.Largest inventory of Pyrowear 53 worldwide. AMS 6308, Lesco 53, x53, Sikorsky ss9706, Bell 299-947-334, Lesco 53, x53.Well, 9310 is actually around 7% stronger than Carpenter 158 and is better than "mil-spec." faxonfirearms.com FWIW, Right To Bear has Toolcraft 9310 BCGs for $80.11-17-13, 07:36 #32 Palmguy Senior Member Join Date Oct 2007 Location NW Florida Posts 2,553 Feedback Score 42 (98%) Originally Posted by Iraqgunz C158 is around $10.33 per pound and it must be purchased in huge lots.I've seen 9310 used in some bolts and wonder if it's actually inferior. Is there technical data to show that c-158 is superior? Carpenter 158 Vs. 9310 - Page 10W1 and silver steel fall into this same category. O1. This material has been at least historically been widely used for several parts, 1911 manual offers it for many uses, e.g firing pins. It is tougher than plain carbon steel, but easy to heat treat. 4140, 4150. Likely one of the most common alloys used.What is the difference between Carpenter 158 and 9310 steel? Carpenter 158 is the military specification (mil-spec) for bolts. 9310 is a more modern steel which can be up to 8% stronger than Carpenter 158. They are both premium steels with a long and successful history of use in AR15 bolts.Mar 7, 2013 · Quoted: As I understand it, Carpenter 158 is a case (surface) hardened steel where 8620 is through hardened. This would allow 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. 8620 being through hardened can either be softer ...

Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.Toolcraft DLC BCG 9310 556. TC556DLC-9310. $159.99. Add selected to cart. Description. Description. Free Shipping on all Toolcraft Bolt Carrier Groups! The Ionbond Diamond Like Carbon (DLC) finish is an incredibly hard (90 Rockwell) self-lubricating finish. This makes it extremely resistant to wear and corrosion.Nov 16, 2013 · 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 …Bren · #2 · Aug 21, 2019. I looked at a couple of PSA kits recently and the only difference was that one had a 9310 bolt and one had a C158. 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.Instagram:https://instagram. member shifthoundcasual interactive crosswordskalalau trail deaths 2022yessenia garcia mua Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.9310 ALLOY STEEL – AMS 6265 VAR – UNS93106 DATA SHEET GENERAL CHARACTERISTICS: 9310 VAR AMS 6265 is a Chromium-Nickel-Molybdenum Alloy used as a Carburizing Grade for Aircraft Parts. Users can obtain high case hardness coupled with high core strength and toughness. High alloy content makes it suitable for use in relatively large cross-sections. 10 day weather forecast boise idred shade la times crossword 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. 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." Faxon uses 9310 in their bolts and ... exchange rate in nepal rastra bank I bought a Carpenter steel bolt years ago from Fulton Amory more out of convenience than choice (back ~1998 or so.) When comparing 8620 to Carpenter 158 you will notice that 158 has a much lower carbon content, and higher Chromium and Nickel content than 8620. 158 is truly an alloy metal, while 8620 is a low alloy metal.Oct 6, 2020 ... The downside of 9310 steel is that is has to be properly heated treated when used for a bolt, and this process is one that is difficult with ...