CN3M ASTM A743 (CENT, INVEST, SAND)

CN3M ASTM A743 (CENT, INVEST, SAND)

GradeUNS:CN3M (J94652)

Type:21Chromium,24 Nickel,with Molybdenum,

Chemical Requirements:

C(max):0.03

Men(max):2.0

Si(max):1.0

P(max):0.03

S(max):0.03

Cr:20.0~22.0

Ni:23.0~27.0

Molybdenum:4.5~5.5

Heat Treatment Requirements:

Heat to 2150°F [1175°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:63

Tensile, MPa:435

Yield Strength, min

Yield, ksi:25

Yield, MPa:170

Elongation in 2 in. [50 mm] min, %A: 30

Keywords: corrosion resistant; iron-chromium; iron-chromium nickel; steel castings

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