Application of a fine grain manganese-nickel structural steel

Details Application of a fine grain manganese-nickel structural steel Application of a fine grain manganese-nickel structural steel

C - Chemistry, Metallurgy

22

C

75/147

C22C 38/08 (2006.01) C22C 38/04 (2006.01) C22C 38/12 (2006.01)

Patent

CA 1149647

ABSTRACT OF THE DISCLOSURE The invention relates to the use of a fine grain manganese-nickel structural steel which contains 0.04% to 0.09% carbon, 1.2 to 1.8% manganese, 0.1 to 0.4% silicon, 0.03 to 0.08% niobium, 0.5 to 1.5% nickel, up to 0.025% aluminum, up to 0.015% sulfur and, optionally, 0.2 to 0.4% copper, the residue being iron including the impurities resulting from smelting as a material for workpieces, e.g., pipes and vessels, which may get in contact with liquid gases at temperatures of at least -120°C.

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