Steel alloy for machine components
AssigneeBoehler Edelstahl GmbH & Co. KG
InventorsIngo SILLER, Herbert SCHWEIGER, Devrim CALISKANOGLU, Silvia ZINNER
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Abstract
A machine component or part for alternating mechanical stresses up to a temperature of at most 160° C. The component or part comprises a thermally quenched and tempered steel alloy which comprises carbon, silicon, manganese, chromium, molybdenum and vanadium in certain concentrations, the remainder being iron (Fe) and accompanying elements and contaminants due to smelting. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
Claims20
A machine component or part for alternating mechanical stresses up to a temperature of up to about 160° C., wherein the component or part comprises a thermally quenched and tempered steel alloy which comprises in % by weight, based on a total weight of the alloy:
- Carbon (C)
- from about 0.48 to about 0.55
- Silicon (Si)
- from about 0.18 to about 0.25
- Manganese (Mn)
- from about 0.35 to about 0.45
- Chromium (Cr)
- from about 4.40 to about 4.70
- Molybdenum (Mo)
- from about 2.90 to about 3.10
- Vanadium (V)
- from about 0.72 to about 0.77,
- remainder iron (Fe) and accompanying elements and contaminants due to smelting.
A method of manufacturing a machine component or part having a tensile strength of greater than about 2,000 MPa for alternating mechanical stresses up to a temperature of up to about 160° C., wherein the method comprises manufacturing the component or part by using a thermally quenched and tempered steel alloy which comprises in % by weight, based on a total weight of the alloy:
- Carbon (C)
- from about 0.48 to about 0.55
- Silicon (Si)
- from about 0.18 to about 0.25
- Manganese (Mn)
- from about 0.35 to about 0.45
- Chromium (Cr)
- from about 4.40 to about 4.70
- Molybdenum (Mo)
- from about 2.90 to about 3.10
- Vanadium (V)
- from about 0.72 to about 0.77,
- remainder iron (Fe) and accompanying elements and contaminants due to smelting.
Dependencies are inferred from the claim text.