CK3MCuN ASTM A743 (CENT, INVEST, SAND)

CK3MCuN ASTM A743 (CENT, INVEST, SAND)

GradeUNS:Ck3MCuN (J93254)

Type:20Chromium,18 Nickel,with Copper and  Molybdenum

Chemical Requirements:

C(max):0.025

Men(max):1.20

Si(max):1.00

P(max):0.045

S(max):0.010

Cr:19.5~20.5

Ni:17.5~19.5

Molybdenum:6.0~7.0

Copper:0.50~1.00

Nitrogen:0.180~0.240

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

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