Hochfester Austenitischer Edelstahl und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4793393

Anmeldetag

5. Dezember 2024

Veröffentlichung

12. Juni 2025

Rechtsraum

EP

Abstract

A high-strength austenitic stainless steel according to one embodiment of the present disclosure comprises, by wt%, 0.01-0.1% of C, 0.1-1% of Si, less than 0.05% of P, less than 0.03% of S, 1-5% of Mn, 1-5% of Ni, 15.0-18.0% of Cr, 0.1-2% of Cu, 0.1-0.2% of N, 0.15-0.25% of Nb, and the balance of Fe and inevitable impurities, and can satisfy Formula (1) and formula (2). Formula (1): [Ni]+0.8[Cu]+0.5([Mn]+[Cr])+16([C]+[N]) ≤ 20, Formula (2): ([N]+1.8[Nb])/(0.01[Cr]) ≥ 2.6 (Here, [Ni], [Cu], [Mn], [Cr], [C], [N] and [Nb] represent the wt% of each element).

Anmelder

Firma

POSCO Co., Ltd

Land

🇰🇷 Südkorea