CF8M Stainless Steel Properties, Composition & Equivalent

CF8M ASTM A743 / A744 / A351       Grade(UNS):J92900       Alloy Family: Austenitic stainless steel        Equivalent: 316 stainless steel

What is CF8M Stainless Steel ?

CF8M austenitic stainless steel is an improved version of CF8. Molybdenum is added to the alloy of CF8 to increase its corrosion resistance. CF8M is widely used in the environment with serious chloride corrosion. This alloy is often used in the annealing stage of stainless steel after welding and can be used at 1500 ℉.

CF8M applications include flanges, fittings, valves and other components.

Equivalent: 316 stainless steel

CF8M stainless steel, 316 stainless steel

CF8M chemical composition

 CMnSiPSCrNiMo
Max0.081.51.500.040.0421.012.03.0
Min18.09.02.0

Heat treatment

The solid solution treatment was carried out at 1010 ~ 1150 ℃ for 3 min

Tempering treatment should be carried out after holding for 1.5 hours at 430 ℃~ 480 ℃

Mechanical Properties

GradeCF8M
Reduction of Area, min / %
Yield Strength, minKsi – 30, MPa – 205
Tensile Strength, minKsi – 70, MPa – 485
Elongation[50mm], min / %30 %

Features

  • Excellent corrosion resistance
  • Good heat resistance
  • Good low temperature strength
  • Good processability
  • It can work in high corrosive environment

Applications

  • Environmental protection industry
  • Chemical industry
  • Household appliances
  • Food industry
  • Heat exchanger

CF8M equivanlent

316 stainless steel

Due to the addition of Mo, 316 stainless steel has excellent corrosion resistance, atmospheric corrosion resistance and high temperature strength, and can be used under harsh conditions; it has excellent work hardening (non-magnetic). It is widely used. Environmental protection industry: industrial waste gas, garbage and sewage disposal devices; chemical industry: pumps, valves, pipes, etc.; daily household appliances: washing machine cylinder, water heater liner, microwave oven shell, refrigerator lining

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