Austenitisches Edelstahlmaterial

Details

Veröffentlichungs-Nr.

EP4768615

Anmeldetag

23. August 2024

Veröffentlichung

27. Februar 2025

Rechtsraum

EP

Abstract

An austenitic stainless steel material that has high strength and has excellent hydrogen embrittlement resistance in a high-pressure hydrogen gas environment is provided. An austenitic stainless steel material of the present disclosure has a chemical composition consisting of, in mass%, C: 0.100% or less, Si: 1.000% or less, Mn: 8.00 to 20.00%, P: 0.050% or less, S: 0.0050% or less, Cr: 18.00 to 30.00%, Ni: 10.00 to 25.00%, N: 0.700 to 1.000%, V: 0.010 to 0.200%, Nb: 0.010 to 0.300%, Al: 0.200% or less, and O: 0.0100% or less, with the balance being Fe and impurities, in which Fnl defined by Formula (1) in the description is 18.0 or more when the content of Ni is less than 17.00% and is 22.0 or more when the content of Ni is 17.00% or more.

Anmelder

Firma

Nippon Steel Corporation

Land

🇯🇵 Japan