Heat resistant cast steel

Details Heat resistant cast steel Heat resistant cast steel

C - Chemistry, Metallurgy

22

C

75/105

C22C 38/50 (2006.01) C22C 38/00 (2006.01) C22C 38/54 (2006.01)

Patent

CA 1198611

ABSTRACT OF THE DISCLOSURE A heat resistant cast steel outstanding in creep fracture strength at high temperatures and resistance to thermal shock and to carburizing and containing the following components in the following proportions in terms of % by weight: C 0.3 - 0.6, O < Si ? 2.0, O < Mn ? 2.0, Cr 20 - 30, Ni 30 - 40, Nb + Ta 0.3 - 1.5, W 0.5 - 3.0, N 0.04 - 0.15, B 0.0002 - 0.004, Ti 0.04 - 0.50 and Al 0.02 - 0.50, the steel further containing 0.2 to 0.8% by weight of Mo when so desired, the balance being substantially Fe.

407311

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