Cold-formable chrome steel
AssigneeStahlwerk Ergste Westig GmbH
InventorsOSKAR PACHER, Gisbert Kloss-Ulitzka, Guido Nicolini
Life of this patent
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Abstract
A cold-formable, corrosion-resistant chrome steel includes, by weight percent, 14% to 20% chromium, 0.005% to 0.05% carbon, up to 0.01% nitrogen, 0.2% to 0.6% silicon, 0.3% to 1.0% manganese, 0.1% to 1.0% molybdenum, up to 0.8% nickel, 0.2% to 1.0% copper, 0.15% to 0.65% sulfur, as well as separately or in combination 0.01% to 0.1% lead, 0.01% to 0.5% bismuth, 0.01% to 0.1% arsenic, 0.01% to 0.1% antimony, 0.005% to 0.08% of each of vanadium, titanium, niobium, and zirconium, 0.02% to 0.2% of each of selenium and tellurium, the remainder iron and incidental smelting-related impurities.
Claims11
A chrome steel alloy having a composition comprising, by weight percent,
- 14% to 20% chromium,
- 0.005% to 0.05% carbon,
- up to 0.01% nitrogen,
- 0.2% to 0.6% silicon,
- 0.3% to 1.0% manganese,
- 0.1% to 1.0% molybdenum,
- up to 0.8% nickel,
- 0.2% to 1.0% copper,
- 0.02% to 0.2% selenium
- 0.15% to 0.65% sulfur,
- 0.01% to 0.1% arsenic,
- 0.005% to 0.08% vanadium,
- and at least one element selected from the group consisting of 0.01% to 0.1% lead, 0.01% to 0.5% bismuth, 0.01% to 0.1% antimony, 0.005% to 0.08% titanium, 0.005% to 0.08% niobium, 0.005% to 0.08% zirconium, up to 0.20% tellurium, and any combination thereof,
- the remainder iron and incidental smelting-related impurities.
A chrome steel alloy having a composition comprising, by weight percent,
- 14% to 20% chromium,
- 0.005% to 0.05% carbon,
- up to 0.01% nitrogen,
- 0.2% to 0.6% silicon,
- 0.3% to 1.0% manganese,
- 0.1% to 1.0% molybdenum,
- up to 0.8% nickel,
- 0.2% to 1.0% copper,
- 0.02% to 0.2% selenium
- 0.15% to 0.65% sulfur,
- 0.01% to 0.1% arsenic,
- 0.005% to 0.08% vanadium,
- 0.01% to 0.1% antimony,
- and at least one element selected from the group consisting of 0.01% to 0.1% lead, 0.01% to 0.5% bismuth, 0.005% to 0.08% titanium, 0.005% to 0.08% niobium, 0.005% to 0.08% zirconium, up to 0.20% tellurium, and any combination thereof,
- the remainder iron and incidental smelting-related impurities.
Dependencies are inferred from the claim text.