CF8M Stainless Steel Casting

CF8M stainless steel casting

What is CF8M Stainless Steel?

CF8M, whose equivalent type is 316, is the most widely used US standard austenitic stainless steel casting grades. The first letter “C” means this alloy is mainly for the purpose of corrosion resistance. The second letter “F” is the approximate location on the iron-chromium-nickel (FeCrNi) ternary diagram and indicates the iron, chromium and nickel content. The number “8” refers to the maximum carbon content in increments of 0.01%. In this instance, 0.08%. And the last letter “M” means that Molybdenum is present.

It provides a good balance of corrosion resistance, availability, strength and cost. It also has excellent corrosion resistance in normal atmospheric conditions, including coastal exposure. It resists most water and brines at ambient temperature as well.

Chemical Composition of CF8M Stainless Steel

There are two types of different material standard of CF8M stainless steel, one is ASTM A351, and the other is ASTM A743 standard, just little difference in chemical compostions as below:

CF8M in ASTM A351 Standard:

C Mn Si S P Cr Ni Mo
≤0.08 ≤1.50 ≤1.50 ≤0.040 ≤0.040 18.0-21.0 9.0-12.0 2.0-3.0

CF8M in ASTM A743 Standard:

C Mn Si S P Cr Ni Mo
≤0.08 ≤1.50 ≤2.0 ≤0.040 ≤0.040 18.0-21.0 9.0-11.0 2.0-3.0

Casting of CF8M Stainless Steel

Like other stainless steel alloys (CF3, CF3M, CF8, etc), CF8M stainless steel is one of the common grades used in investment casting. CFS Foundry can make CF8M stainless steel castings in various shapes. If you have any project on CF8M stainless steel casting, pls get in touch with us.

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2 thoughts on “CF8M Stainless Steel Casting

  1. Dear Sir / Madam,

    We are currently looking for a new investment casting supplier.
    Therfore I kindly ask you to provide a quote for the attached part:

    – price and leadtime for investment casting pattern
    – price and leadtime for Raw casting in material grade CF8M
    Expected yearly quantity = 300 pcs
    approx. Raw material weight = 15 kg

    1. Dear Mario,

      Thanks for your contacting!

      We are happy to be your supplier for investment casting CF8M stainless steel parts. To move forward, could you pls first send the dawings of the part to I will ask our engineer to calculate the prices for you later!

      Best Regards

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