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Stahlwerk Ergste Westig GmbH

Stahlwerk Ergste Westig GmbH Patent applications
Patent application numberTitlePublished
20100136357COLD-FORMABLE CHROME STEEL - 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.06-03-2010
20100132846SPRING ELEMENT MADE FROM A FERRITIC CHROMIUM STEEL - Spring element, in particular spring rail for wipers, in particular of motor vehicles, with a low tendency to vibrate or a high attenuation, made from a ferritic chromium steel comprising 0.03 to 0.12% of carbon, 0.2 to 0.9% of silicon, 0.3 to 1% of manganese, 13 to 20% of chromium, 0.1 to 2.0% of molybdenum, 0.05 to 1.0% of copper, 0.02 to 0.05% of nitrogen, less than 0.01% of titanium, 0.01 to 0.10% of niobium and 0.02 to 0.25% of vanadium, remainder iron.06-03-2010

Patent applications by Stahlwerk Ergste Westig GmbH