Erasteel Kloster Aktiebolag

Erasteel Sas

Stefan Sundin

Fredrik Sandberg

Delphine Rébois

A steel alloy intended for cutting applications and hot working tools, comprising, in weight percent (wt. %), C: 0.40-1.2 wt. %, Si: 0.30-2.0 wt. %, Mn: max 1.0 wt. %, Cr: 3.0-6.0 wt. %, Mo: 0-4.0 wt. %, W: 0-8.0 wt. %, wherein (Mo+W/2)&#x2265;3.5 wt. %, Nb: 0-4.0 wt. %, V: 0-4.0 wt. %, wherein 1.0 wt. %&#x2264;(Nb+V)&#x2264;4.0 wt. %, Co: 25-40 wt. %, S: max 0.30 wt. %, N: max 0.30 wt. %, the balance being Fe and unavoidable impurities.

Steel alloy and a tool

The present invention relates to a high speed steel with a chemical composition that comprises, in % by weight: 0.6-2.1 C 3-5 Cr 4-14 Mo max 5 W max 15 Co 0.5-4 V, balance Fe and impurities from the manufacturing of the material, which steel is powder metallurgically manufactured and has a content of Si in the range of 0.7&#x3c;Si&#x2264;2.

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Gävle, Sweden

Stefan Sundin