9310 Steel Vs Carpenter 158

9310 is a AISI grade of tool steel that is approximately 7 stronger than Carpenter 158 steel when heat treated and processed correctly. 9310 is also a Carpenter product but the make up of the steel differs between the two.

Bolt Carrier Only

I have been partial to the Carpenter 158 material for bolts but there are quite a few available in 9310.

9310 steel vs carpenter 158. This steel is more readily available than the Carpenter No. Posted July 20 2014. Also since Carpenter has never made or tested any bolts using 9310 I fail to see how anything they say with regard to its use is of any relevance whatsoever.

This c158 has to be purchased in massive quantities while 9310 can be purchase in a quantity more reasonable for a small company. Less expensive it helps influence quality parts at a more affordable price. 9310 is not easily available in the UK so I am looking for a subtitute material.

9310 can be better than C-158 but it all depends on who does the heat treatment and how good it is. From what I understand if done right 9310 is more durable. This type of steel is more expensive than 9310 another popular steel used for the bolt and carrier but it provides the best performance and lifespan for the BCG.

What I surmised was that 9310 should be a better bolt material as long as it is properly heat-treated. Bolt Steel Carpenter 158 Vs 9310 By Azka August 21 2020 Carpenter 158 vs 8620 9310 the firefield lmt enhanced bolt carrier carpenter 158 vs 8620 9310 the. It has been the Mil-Spec since.

Its a wear item keep a spare handy and dont worry about it too much. This is an excellent steel alloy with high core hardness and fatigue strength. Hi All Does anyone know a steel with near equivalent properties to 9310.

Typically the AR15 community looks for C-158 which is a blend of steel from Carpenter. Also 9310 is great and excellent for bolts now with modern heat treat protocols it was not as good as c158 10 years ago if you screw the heat treat on 9310 its too brittle Get it right it about the. This is the MIL-SPEC alloy used for the bolt.

It has several alloy elements that promote a better structure and in the correct heat treatment will provide a slightly higher toughness than Carpenter 158 which is benificial to the fatigue life. 9310 steel has higher tensile and yield strength than 8620 steel making it an excellent choice for bolt carrier construction. I think C-158 has to be bought in larger bulk quantities than 9310 which has also led to more 9310 offerings.

158 and is used for both carrier and bolt manufacturing but isnt inferior in strength or durability. I think 9310 has more molybdenum and C-158 and P-6 machine steel is the same and has more nickel and chrome. 9310 is a AISI standard grade of tool steel that makes it about 7 stronger than.

P-6 and 9310 are very close in composition. Tough as nails. 9310 is billed as being the better steel Carpenter 158 is what is milspecd.

Can also hold up to the stress a bolt is put under as well as 158 with proper heat treating. This was many years ago and many things change in metallurgy as new testing procedures and innovations come out. Theres been no extremely high round count testing to determine whether 158 or 9310 is better but both are considered to be better than 8620 but rest assured.

Carpenter Technologies 158 blend of steel was selected as it provided adequate strength and wear characteristics. JazzyUK Mechanical OP 7 May 15 1110. C-158 is simply Carpenters trade name for P-6 tool steel.

I know 9310 alloy steel is very strong they make differential ring and pinion gears for professional class drag racing cars. Compared to modern alloys 158 is a very poor choice for carbine weapons failing in as little as 3000 rounds when pushed hard - 9310 is far superior in this respect. 9310 is a AISI standard grade of tool steel that makes it about 7 stronger than mil-spec Carpenter 158 steels when appropriately treated.

Its also replacing traditional 8620 and Carpenter 158 steel in many cases. Since the creation of Carpenter 158 the metals industry has continued to innovate creating new blends of steels. It is this variable that keeps me away from them in general although I do own one 9310 bolt w 8620 carrier as a back-up.

The 9310 has some molybedenum while the P-6 has more chrome and nickel. 158 steel is the mil-spec steel used for fabricating the bolt itself. Yes indeed I use them on all my builds with the hard chrome.

Carpenter-158 is mil-spec. I think all my bolts are 9310 except one in a COLT 556 gun. With your price spec just get a standard BCG from a reputable manufacturer and you with be fine.

Bet it is cheaper too. Since the creation of Carpenter 158 the metals industry has continued to innovate creating new blends of steels. By comparison AISI 9310 will on first inspection also make an adequate bolt material.

Bolt Carrier Only