Method for producing a strand from stainless steel and strand made of stainless steel
AssigneeSandvik Materials Technology Deutschland GmbH
InventorsThomas Frobose, Christofer Hedvall, Udo Rauffmann
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Abstract
A method for manufacturing a strand from a stainless steel by cold forming a billet into the cold-hardened strand and subsequently annealing the strand is provided. The method allows stainless steel strands to be produced, which have both a high tensile strength, as well as a high degree of elongation. The strand is heated to a temperature ranging from 400° C. to 460° C. while the strand is being annealed, and the cold-hardened strand is surrounded by a protective gas atmosphere during the heating process.
Claims13
A method for manufacturing a strand of stainless steel comprising:
- cold forming a billet into a strain-hardened strand;
- and
- subsequently annealing the strand,
- wherein during annealing of the strand the strand is heated to a temperature in a range from 400° C. to 460° C., and
- wherein the strain-hardened strand is surrounded by a protective gas atmosphere during heating, and
- wherein the material of the billet is an austenitic stainless steel having a composition consisting of not more than 0.06 weight % carbon, not more than 2 weight % manganese, not more than 0.7 weight % silicon, 16 to 20 weight % chromium, 2.0 to 2.6 weight % molybdenum, with a balance of iron and unavoidable impurities.
Dependencies are inferred from the claim text.