CN7MS ASTM A743 (CENT, INVEST, SAND)

CN7MS ASTM A743 (CENT, INVEST, SAND)

GradeUNS:CN7MS (J94650)

Type:19Chromium,24 Nickel,with Copper and  Molybdenum

Chemical Requirements:

C(max):0.07

Men(max):1.00

Si(max):2.50~3.50

P(max):0.04

S(max):0.03

Cr:18.0~22.0

Ni:22.0~25.0

Molybdenum:2.5~3.0

Copper:1.5~2.0

Heat Treatment Requirements:

Heat to 2100°F [1150°C] minimum, 2150°F [1180°C] maximum, hold for sufficient time (2 h minimum) to heat

casting to temperature and quench in water

Tensile Requirements:

Tensile Strength, min

Tensile, ksi:70

Tensile, MPa:485

Yield Strength, min

Yield, ksi:30

Yield, MPa:205

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

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

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