CN7M ASTM A743 (CENT, INVEST, SAND)

CN7M ASTM A743 (CENT, INVEST, SAND)

GradeUNS:CN7M (N08007)

Type:20Chromium,29 Nickel,with Copper and  Molybdenum

Chemical Requirements:

C(max):0.07

Men(max):1.50

Si(max):1.50

P(max):0.04

S(max):0.04

Cr:19.0~22.0

Ni:27.5~30.5

Molybdenum:2.0~3.0

Copper:3.0~4.0

Heat Treatment Requirements:

Heat to 2050°F [1120°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:62

Tensile, MPa:425

Yield Strength, min

Yield, ksi:25

Yield, MPa:170

Elongation in 2 in. [50 mm] min, %A: 35

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

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