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.Contact Us. 888-748-5252. Customize Your Shopping Experience Select Your State. $ { activeCategory.name } View All Categories. $ { category.name } $ { category.name }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.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 ...Bolt is made of 158 carpenter instead of the 9310 i notice most others are. Is the 158 going to hold up fine its a hunting rig for a buddy that probly wont see a lot of rounds. Im sure they wouldnt be selling it if it wasnt up to par, thanks again guys. grayfox. 03-31-2018, 01:01 PM.A lot of manufacturers offer a completely 9310 steel bolt carrier group. Though, this is a relatively new phenomenon and some people prefer the tried-and-true 8620 and Carpenter 158 combination. From my perspective, however, 9310 is an excellent option and is objectively stronger than 8620 and Carpenter 158 steel. C 158 vs 9310 Bolt Just ordered a Aero Precision 6.5 bcg with bolt. Bolt is made of 158 carpenter instead of the 9310 i notice most others are. Is the 158 going to ... 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 …Simple, 9310 is an AISI standard grade tool steel which, when properly treated, actually makes it about 7% stronger than “mil-spec” Carpenter 158. The proof is in the numbers. The carrier material, 8620 is used for various aircraft and vehicular applications, has a superior toughness rating, and features solid overall strength properties.Thread: Carpenter 158 Vs. 9310. Thread Tools. Show Printable Version; 04-29-17, 04:58 #111. sig1473. View Profile View Forum Posts View Articles Member Join Date Oct 2013 Location IN Posts 539 Feedback Score 25 (100%) Originally Posted by AR-556.9310 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”®, ...Carpenter No. 158 Bolt Steel. This is Mil-Spec steel for bolt fabrication and offered case hardened steel to prevent cracking and surface wear. Tensile Strength: 1103 MPa; Yield Strength: 931 MPa; 9310 Steel. Similar to Carpenter No. 158 and is used for both carrier and bolt manufacturing, it is more widely available and is more affordable.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. 9310 is a steel typically used for gears, cams and things of that nature while Carpenter 158 or P6 tool steel is a plastic injection mold steel. 9310 is easier to machine and is more dimensionally stable in the heat treat process, this equates to better made parts.*The extractors are ... Jun 10, 2019 · Central NY. I read an article by Faxon ( manufacturer of barrels and other parts) and they claim that 9310 steel is better than Carpenter 158. C158 is MilSpec and at the time. a good steel. 9310 is newer and 7% better. Faxon has a good reputation for barrels. so I will take their word on this. Build a list of your favorite alloys. Click the heart icon on any alloy to begin creating your account. Premium quality chromium-nickel-molybdenum carburizing steel produced by the vacuum consumable electrode process. It has high hardenability, high core hardness, and superior fatigue strength.The bolt assembly is machined from Carpenter No. 158® steel, shot-peened, MP marked, HP tested, and has a tool steel extractor that is machined from bar stock. Features: - 4340 Extractor spring, mil-spec insert and extractor retainer pin in mag phosphate - Mag phosphate ejector - Mil-spec stainless gas rings - 8620 carrier in FA profile chrome ...Complete Black Nitride / Melonite Bolt Carrier Group. Smooth & Protective Nitride coating. M16 Carrier-8620 Bolt-9310 MPI & HPT Tested Shot Peened Upgraded ...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 ...Jan 1, 2020 · Carpenter 158 was what was spec'd in the 1950's when the rifle was made. One company in the world makes it, and it's Carpenter. Other metal alloys have come along since 1950-whatever that are definitely superior, I think 9310 is fine. So is polishing a radius on the cam pin hole in the bolt, which is where the cracks usually happen. 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 …Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite.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. It has become evident from the industry that a number of manufacturers have jumped upon the AISI 9310 wagon in order to claim better performance.This premium backup bolt is a 9310 MPI spare bolt that perfectly fits the M16 and AR15 carriers and has a black nitride finish that provides increased corrosion resistance, natural lubrication and improved strength. When comparing 9310 vs 158 bolts, 9310 steel bolts provide a more reliable and durable base metal.Nov 8, 2016 · Where are you seeing bolts made from 8620, or carriers and keys made from C158 or 9310? The BCM website states the bolt is made from C158. PSA states this as well. The Nickel Boron BCG I was interested in, made by Ground Zero Precision, states the carrier is 8620 steel, bolt is C158, and the cam pin is 4340 steel. 9310 Steel. This is an excellent steel alloy with high core hardness and fatigue strength. It’s also replacing traditional 8620 and Carpenter 158 steel in many cases. 9310 steel has higher tensile and yield strength than 8620 steel, making it an excellent choice for bolt carrier construction.I think. 9310 has a better charpy rating which should help to keep the lugs from ripping off the body of the bolt. From what I understand is what is said above. 158 has to be bought in bulk to make it worth while and affordable. The 9310 is cheaper to buy in smaller quantities.This premium backup bolt is a 9310 MPI spare bolt that perfectly fits the M16 and AR15 carriers and has a black nitride finish that provides increased corrosion resistance, natural lubrication and improved strength. When comparing 9310 vs 158 bolts, 9310 steel bolts provide a more reliable and durable base metal.Nov 17, 2021 ... ... 9310 steel and is magnetic particle inspected, features a nitride finish. On ... last a lot longer than a Carpenter 158 bolt. It's a stronger ...Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.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. Is there technical data to show that c-158 is superior?[#1] This is a debated topic. 9310 is supposed to be harder and more durable if heat treated correctly. They get a bad rap because when they first hit the market there were a lot that were not heat treated correctly and failed C158 is the Mil spec standard with a long track record of reliability. It is usually the most desiredBut Carpenter cares little or nothing about whether bolts made from 158 steel break prematurely or not. 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 …Apr 29, 2017 · 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 ... Thread: Carpenter 158 Vs. 9310. Thread Tools. Show Printable Version; 11-14-13, 18:32 #11. Mr blasty. View Profile View Forum Posts View Articles Member Join Date Jun 2010 Location MN Posts 947 Feedback Score 6 (100%) Originally Posted by SilverBullet432.Wilson combat has a 9310 steel Bolt Carrier Group on sale for $98.57, which is something like $70 off regular price. The three main BCGs I am looking at right now: PSA premium 158 Carpenter - was on sale for $109 when I put my order in. Rainier Arms 158 Carpenter - on sale for $119. Wilson combat 9310 steel - on sale for $98.57.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 ...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: Cam Pin Finish: Nickel Boron: Firing Pin ...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.C 158 vs 9310 Bolt Just ordered a Aero Precision 6.5 bcg with bolt. Bolt is made of 158 carpenter instead of the 9310 i notice most others are. Is the 158 going to hold up fine its a hunting rig for a buddy that probly wont see a lot of rounds. Im sure ...On the other hand, Carpenter 158 steel is chosen for its toughness, shock resistance, and fatigue strength. As such, it sees use in firearm components, gears, shafts, and general machinery. What Is the Difference Between 9310 Steel and 8620 Steel? 9310 steel and 8620 steel are low-alloy steels with some key differences between them.On the hardenability of steel, 4140 heat treatment has good strength and good comprehensive mechanical properties, good manufacturability, high yield. The highest temperature is 427 degrees Celsius. 4140 strength, high hardenability, and good toughness, quenching deformation of small, high temperature creep rupture strength, and high.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 ...Compared to modern alloys, 158 is a very poor choice for carbine weapons, failing in as little as 3,000 rounds when pushed hard - 9310 is far superior in this respect. Continued.... Several have made claims that AISI 9310 has problems. Maybe it does. But it is a fact that 9310 is the most frequently used steel alloy for aircraft gears.Wilson combat has a 9310 steel Bolt Carrier Group on sale for $98.57, which is something like $70 off regular price. The three main BCGs I am looking at right now: PSA premium 158 Carpenter - was on sale for $109 when I put my order in. Rainier Arms 158 Carpenter - on sale for $119. Wilson combat 9310 steel - on sale for $98.57.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.This Toolcraft Bolt is made of Mil-spec Carpenter 158 steel, shot peened, and mag particle inspected. Gas key is chrome lined, phosphate coated, and secured with grade 8 fasteners and staked per mil-spec. Full-auto bolt carrier is phosphate coated and chrome lined. Made in …Toolcraft Inc. is an OEM manufacturer of bolt carrier groups (BCGs) for many AR15 makers. These companies know they can trust Toolcraft quality and are proud to have their logos applied to Toolcraft BCGs. Toolcraft products are also trusted by the U.S. Military and carry a lifetime warranty. Finish is Black Nitride which is a metal treatment ...Feb 15, 2020 · Carpenter 158 is mil-spec, but many companies nowadays are opting for "stronger" steels like 9310 and S7 which are both tool steels used in large machines. … · Carpenter 158 is a case(surface) hardened steel where 8620/9310 is through hardened. Case hardening allows C-158 to be very hard on the outside to prevent wear …... Carpenter 158, properly heat treated and shot peened. ... Why can't they tell us "here's what makes a 9310 bolt equivalent to or superior than ...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. Batch MPI and HPT testedThe 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.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 vary slightly. Here’s the information on both the DLC and NiB-X coatings. Technical Data on DLC Coating. …Features a carrier made from Carpenter 158 Tool Steel, and an 8620 steel with an M16 cut bolt. High Quality. ... Steel is further classified according to availability as well as easily machined variants. 9310 and 8620 steel and the high core strength Carpenter 158 steel are the recommended material for military specification BCGs.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 …The Aero PRO BCG is a fairly new addition to Aeros lineup. This is a step above their standard option, but it is well worth the extra cost as the BCG is one of the most critical components of your rifle. The PRO BCG features an 8620 carrier, a 9310 bolt, and a 4140 Extractor, Cam Pin, and Gas Key. C158 is our preferred bolt material, but 9310 ...Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.May 13, 2013 · Those pits rusted and cracked more until the bolt failed. There is a long article on the internet somewhere..Google. 158 was chosen as a better material to replace 8620, 9310 was not around then, the standard has not been changed. Both 158 and 9310 can be had in a VAC melt grade which is the purest form of both alloys. M16 Nitride BCG | Full Auto Rated | Nitride Coating | 8620 Carrier | M16 Carrier | Tool 7 Steel Extractor | Viton O-Ring | 9310 Bolt.Nov 8, 2016 · Where are you seeing bolts made from 8620, or carriers and keys made from C158 or 9310? The BCM website states the bolt is made from C158. PSA states this as well. The Nickel Boron BCG I was interested in, made by Ground Zero Precision, states the carrier is 8620 steel, bolt is C158, and the cam pin is 4340 steel. Members. 550. LocationCalifornia. Posted July 20, 2014. I have been partial to the Carpenter 158 material for bolts but, there are quite a few available in 9310. I know 9310 alloy steel is very strong (they make differential ring and pinion gears for professional class drag racing cars. from it!) but on the M16/M4 the mil-spec is C158 - what is ...Jul 18, 2023 · The most common is Carpenter 158 or C-158 steel, and the second most popular is 9310 steel. The exact difference between them is a lot of scientific talk but the easy version is that 9310-steel is about 7% stronger than C-158 when heat treated correctly. However, C-158 is Mil-Spec. Why is C-138 Mil-Spec if there is something better out there? Carpenter 158 is 9310 with case hardening It's not, Carpenter 158 is a propitiatory steel alloy. It has similar (arguably superior) properties to 9310 but it is not 9310.Jul 7, 2023 ... 9310 steel and Carpenter 158 steel differ in their composition and intended applications. 9310 steel is a nickel-chromium-molybdenum alloy ...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.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.... Carpenter 158, properly heat treated and shot peened. ... Why can't they tell us "here's what makes a 9310 bolt equivalent to or superior than ...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. Machined from 8620 steel. Carrier has forward assist serrations. Mil-Spec phosphate coating. Properly staked gas key. Chrome lined gas key and bolt channel. 5.56 Bolt is machined from Carpenter 158 tool steel. Shot peened. HPT tested/MPI marked. Black o-ring insert on extractor.There are a couple of different popular bolt steels, notably 9310 and 158 Carpenter steel. Currently, MIL-SPEC steel based off Colt TDP is 158 Carpenter steel. The reason being is that it works, and it …11-14-13, 06:26 #1 eperk Member Join Date Aug 2012 Location Northeast MS. Posts 460 Feedback Score 0 Carpenter 158 Vs. 9310 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. Is there technical data to show that c-158 is superior?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 11AIM Surplus Bolt Carrier Review. I just received the AIM surplus bolt carrier, which many of you may know about due to its amazingly low price of $79 dollars shipped. What interested me was the bolt material. Typically the AR15 community looks for C-158 which is a blend of steel from Carpenter. 9310 is also a Carpenter product, but the …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,,Build a list of your favorite alloys. Click the heart icon on any alloy to begin creating your account. Premium quality chromium-nickel-molybdenum carburizing steel produced by the vacuum consumable electrode process. It has high hardenability, high core hardness, and superior fatigue strength.Aug 21, 2020 ... ... 158-carpenter-sp-hpt-mpi/ Specs: Sons of Liberty Gun Works Bolt ... (vs 4140), Heat treated Shot peen per ASTM B851/SAE AMS2430S. Extractor ...Jul 11, 2020 ... 9310 is a far more widely used material in the metal industry than is C-158, & IF, & that's a REALLY big IF, it's heat treated correctly, it may ...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 ...Our bolt assemblies are shot-peened and made from 9310. They are batch high pressure ... 9310 or carpenter 158. Finish: Black Nitride. Continue Browsing. Linear ...9310 Carrier/Bolt Steel. This is superior to 8620. Its development came after the AR15 was originally desi, AIM Surplus Bolt Carrier Review. I just received the AIM surplus bol, Aquí nos gustaría mostrarte una descripción, pero el sitio , Mar 7, 2013 · As I understand it, Carpenter 158 is a case (surfa, Product Description. SAA AR-15 .223/5.56 Bolt Assembly Carpente, Nov 14, 2013 · 11-14-13, 06:26 #1 eperk Member Join Date, Barrel Length: 16" Gas System: Mid-LengthBarrel, Sep 6, 2023 · Conclusion. In conclusion, 9310 and, Want to sell my two unfired bcgs They both have zero rou, For each property being compared, the top bar is SAE-AISI 4140 stee, Carpenter 158 and 9310 steel are the best materials for the bolt. And, This guide will break down its functionality, how it w, Firearm Discussion and Resources from AR-15, AK-47, Handguns and, Bolt Carriers made from 8620 Steel, 6A1-4V Titanium or Aluminum; Keys, Barrel Length: 16" Gas System: Mid-LengthBarrel Profi, 9310 G93106 52100 G52986 ACUBE® 100 Carpenter, Survivalist. It's my understanding that the 158 is, at some point, it is how many angels can dance on th.