CN3MN ASTM A743 (CENT, INVEST, SAND)
Grade（UNS）：CN3MN(J94651)
Type：21Chromium,24 Nickel，with Molybdenum,and Nitrogen
Chemical Requirements:
C(max):0.03
Men(max)：2.0
Si(max)：1.0
P(max):0.04
S(max):0.01
Cr:20.0~22.0
Ni:23.5~25.5
Molybdenum:6.0~7.0
Copper:0.75max
Nitrogen:0.18~0.26
Heat Treatment Requirements:
Heat to 2100°F [1150°C] minimum, hold for sufficient time to heat casting to temperature, quench in water or rapid
cool by other means
Tensile Requirements:
Tensile Strength, min
Tensile, ksi:80
Tensile, MPa:550
Yield Strength, min
Yield, ksi:38
Yield, MPa:260
Elongation in 2 in. [50 mm] min, %A: 35
Keywords: corrosion resistant; iron-chromium; iron-chromium nickel; steel castings