CN3MN ASTM A743 (CENT, INVEST, SAND)

CN3MN ASTM A743 (CENT, INVEST, SAND)

GradeUNS: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

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