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US 4,788,034 AGranted
Age hardenable maetensitic steel
AssigneeThyssen Edelstahlwerke AG
InventorsHelmut Brandis, Paul Gumpel
Life of this patent
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Abstract
A martensite steel, especially for plastic molds, of the following compositions: 0.001 to 0.1% carbon 0.50 to 2.0% silicon 8.0 to 14.0% manganese 0.3 to 5.0% titanium 0.001 to 1.0% aluminum 0 to 2.0% chromium 0 to 3.0% molybdenum 0 to 4.0% nickel 0 to 4.0% tungsten 0 to 5.0% cobalt remainder iron, including impurities caused by manufacture.
Claims3
A mold for casting plastics comprised of a martensitic steel with the following composition (in % by weight):
- 0.001 to 0.1% carbon
- 0.50 to 2.0% silicon
- 8.0 to 14.0% manganese
- 0.3 to 5.0% titanium
- 0.001 to 1.0% aluminum
- 0to 2.0% chromium
- 0 to 3.0% molybdenum
- 0 to 4.0% nickel
- 0 to 4.0% tungsten
- 0 to 5.0% cobalt
- remainder iron, including impurities caused by the manufacture.
8 more elements
Dependencies are inferred from the claim text.