Manganese containing materials having high tensile strength
AssigneeHöganäs AB
InventorCaroline Lindberg
Life of this patent
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Abstract
The invention concerns an iron-based powder for powder-metallurgically producing components by powder compacting and sintering. The powder contains 0.25-2.0% by weight of Mo, 1.2-3.5% by weight of Mn, 0.5-1.75% by weight of Si and 0.2-1.0% by weight of C and not more than 2% by weight of impurities including less than 0.25% by weight of Cu. The invention also includes a method for preparing sintered components from this iron powder, as well as the sintered products.
Claims23
An iron-based powder for producing porous components by powder compacting and sintering, comprising in addition to iron
- 0.25-2.0% by weight of Mo
- 1.2-3.5% by weight of Mn
- 0.5-1.75% by weight of Si
- 0.2-1.0% by weight of C
- and not more than 1% by weight of impurities including less than 0.25% by weight of Cu and less than 0.25% by weight of Ni.
A powder-metallurgically produced porous component, which in addition to iron comprises
- 0.25-2.0% by weight of Mo
- 1.2-3.5% by weight of Mn
- 0.5-1.75% by weight of Si
- 0.2-0.70% by weight of C
- and not more than 1% by weight of impurities including less than 0.25% by weight of Cu and less than 0.25% by weight Ni.
A method of powder-metallurgically producing sintered porous components, characterised by using an iron-based powder comprising
- 0.25-2.0% by weight of Mo
- 1.2-3.5% by weight of Mn
- 0.5-1.75% by weight of Si
- 0.2-1.0% by weight of C
- and not more than 1% by weight of impurities including less than 0.25% by weight of Cu and less than 0.25% by weight Ni;
- compacting the powder into the desired shape and sintering the compact at a temperature above 1120.degree. C.
Dependencies are inferred from the claim text.