Aubert & Duval

Erasteel

Jacques Bellus

Johanna André

Fredrik Sandberg

Dominique Thierree

Atman Benbahmed

M Atman Benbahmed

Johanna AndrÉ

The present invention relates to a steel composition carburizable and/or nitritable, comprising, in percentages by weight of the total composition: It further relates to the method of production thereof, the steel blank obtained and a mechanical device comprising the latter.

Steel composition

The present invention relates to a steel composition, to the process for manufacturing same, to the steel blank obtained having a hardness of between 46 and 48 HRC and a resilience KV at &#x2212;40&#xb0; C. of at least 40 joules, and to the use thereof for manufacturing a pressure appliance component.

Steel for small-caliber weapon

A carburisable steel alloy suitable for bearing components comprising, in percent by weight: C 0.05-0.5 wt. % Cr 2.5-5.0 wt. %, Mo 4-6 wt. %, W 2-4.5 wt. %, V 1-3 wt. %, Ni 2-4 wt. %, Co 2-8 wt. %, optionally one or more of the following elements: Nb 0-2 wt. % N 0-0.5 wt. % Si 0-0.7 wt. %, Mn 0-0.7 wt. %, Al 0-0.1 5 wt. %, wherein the combined amount of Nb+V is within the range 1-3.5 wt. %, the combined amount of C+N is within the range 0.05-0.5 wt. %, the balance being Fe and unavoidable impurities.

Steel alloy and a component comprising such a steel alloy

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Saint Genest Lerpt, France

Jacques Bellus