Uddeholms Aktiebolag

Vaino Lampe

Staffan H Gunnarsson

Karl-Erik Johansson

Hellmut Fischmeister

Leif Olsson

A steel alloy is disclosed which is suitable for use in parts exposed to extreme stress and wear at high temperatures comprising the following chemical composition in percentage by weight:

Steel alloy

A method for powder metallurgical production of bar stock from an iron, nickel or cobalt based alloy comprises the steps of introducing a powder of the desired alloy into a tubular container together with a reducing agent and an oxygen getter, sealing the container without evacuating it, heating the sealed container and the powder therein, compacting the heated container by progressive forging and rolling the forged blank. Equipment for forging the container includes a tool having upper and lower dies defining between them an open-ended forging cavity which tapers from an entrance end towards an exit end and through which the container is fed in step-wise manner.

Method and means for the production of bar stock from metal powder

A lining element for pulp refiners is made by casting from a steel alloy containing from 1.0 to 5 percent by weight of titanium present as titanium carbide grains having an average size of 10 microns or less and being uniformly distributed throughout the lining element. The titanium carbide prevents polishing of the working faces of the lining element.

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Hagfors, Sweden

Vaino Lampe