As-rolled steel plate having improved low temperature...

Details As-rolled steel plate having improved low temperature... As-rolled steel plate having improved low temperature...

C - Chemistry, Metallurgy

22

C

75/145

C22C 38/40 (2006.01) C22C 38/08 (2006.01)

Patent

CA 1076848

Abstract of the Disclosure: A high strength steel plate of improved low temperature toughness useful for making an arctic grade line pipe is provided with the addition of 0.8 - 2.0% by weight of Ni and 0.0005 - 0.0040% by weight of Ca, which may be used in the as-rolled state and manufactured through two step controlled rolling the secondary step rolling of which is carried out at a temperature lower than a conventional rolling temperature. - 1 -

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