CA6NM ASTM A743 (CENT, INVEST, SAND)

GradeUNS:CA6NM (J91540)

Type:12Chromium,4 Nickel,

Chemical Requirements:

C(max):0.06

Men(max):1.00

Si(max):1.00

P(max):0.04

S(max):0.03

Cr:11.5~14.0

Ni:3.5~4.5

Molybdenum:0.40~1.0

Heat Treatment Requirements:

Heat to 1850°F [1010°C] minimum, air cool to 200°F [95°C] or lower prior to any optional intermediate temper and

prior to the final temper. The final temper shall be between 1050°F [565°C] and 1150°F [620°C].

Tensile Requirements:

Tensile Strength, min

Tensile, ksi:110

Tensile, MPa:755

Yield Strength, min

Yield, ksi:80

Yield, MPa:550

Elongation in 2 in. [50 mm] min, %A: 15

Reduction of Area, min, %:35

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

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