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1.0565

P355GH

The 1.0565 (P355GH) is a pressure vessel steel: tough, easily weldable, and approved for internal pressure per DIN EN 10028. The "P" stands for Pressure, the number for the [[glossary:streckgrenze|yield strength]]. Typical analysis: 0.18 % C, 0.08 % V, 1.4 % Mn, 0.2 % Ni, 0.35 % Si. For higher [[glossary:verschleissschutz|wear protection]], three hard-facing options are available: S Fe 1 (martensitic, approx. 300–400 HB, machinable), S Fe 2 (wear-resistant and tough, approx. 50–55 HRC, conditionally machinable) and S Fe 15 ([[glossary:karbid|carbide]]-rich, approx. 55–65+ HRC, not machinable).

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