Patent ID: 6485680
Filing Date: 2002-11-26
Classification: C22C

Abstract:
A resulfurized stainless steel which comprises the following composition in percent by weight based on total weight:0.01% &lE; carbon &lE;0.1%; 0.01% &lE; silicon &lE;2.0%; 0.01% &lE; manganese &lE;0.5%; 10% &lE; chromium &lE;25%; 7% &lE; nickel &lE;12%; 0.15% &lE; sulfur &lE;0.45%; 0.01% &lE; molybdenum &lE;3.00%; 0.5% &lE; copper &lE;3.5%; 0.01% &lE; nitrogen &lE;0.1%; 0.0020% &lE; aluminum &lE;0.0100%; 0.0005% &lE; phosphorus &lE;0.050%; 30Ã—10âˆ’4% &lE; calcium &lE;200Ã—10âˆ’4%; 70Ã—10âˆ’4% &lE; oxygen &lE;300Ã—10âˆ’4%; 0.20&lE; calcium/oxygen &lE;0.60, iron and residual elements inherent in smelting, which further comprises one or more of anorthite-, pseudo-wallastonite-, and gehlenite-type lime aluminosilicate inclusions and one or more CrMnS inclusions having a chromium content of between 30% and 70% wt. % based on total wt. of said CrMnS inclusions.