CF20 ASTM A743&A743M(cent,invent,sand)
Grade(UNS):CF20(J92602)
Type:19 Chromium, 9 Nickel
CF20 Chemical Requirements:
C(max):0.20

Men(max):1.5
Si(max):2.00
P(max):0.04
S(max):0.04
Cr:18.0~21.0
Ni:8.0~11.0
Heat Treatment Requirements:
Heat to 1900°F [1040°C] minimum, hold for sufficient time to heat casting to temperature, quench in water or rapid cool by other means
metallographic structure: Austenitic stainless steel
Tensile Requirements:
Tensile Strength, min
Tensile, ksi: 70
Tensile, MPa:485
Yield Strength, min
Yield, ksi:30
Yield, MPa:205
Elongation in 2 in. [50 mm] min, %A: 30