Global Patent Index - EP 0241553 B1

EP 0241553 B1 19920617 - HIGH STRENGTH STAINLESS STEEL, AND PROCESS FOR ITS PRODUCTION

Title (en)

HIGH STRENGTH STAINLESS STEEL, AND PROCESS FOR ITS PRODUCTION

Publication

EP 0241553 B1 19920617 (EN)

Application

EP 85905113 A 19851015

Priority

JP 8500573 W 19851015

Abstract (en)

[origin: WO8702388A1] Austenite stainless steel containing, by weight, 0.03% or less C, 2.00% or less Si, 5.0% or less Mn, 0.030% or less S, 16 to 20% Cr, 6 to 13% Ni, 0.15 to 0.28% N, 0.05 to 0.25% Nb, 0.0020% or less B, the balance of Fe and impurity elements and, optionally, 4% or less Mo, 4% or less Cu, and 0.005 to 0.080% Se, and process for its production. This stainless steel has excellent strength, excellent grain boundary resistance, stress-corrosion cracking resistance, and excellent hot workability, thus being useful as strength-providing members for use in various chemical plants, desalination plants, nuclear plants, etc.

IPC 1-7

C21D 8/00; C22C 38/54; C22C 38/58

IPC 8 full level

C21D 8/00 (2006.01); C22C 38/00 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01)

CPC (source: EP)

C21D 8/005 (2013.01); C22C 38/001 (2013.01); C22C 38/54 (2013.01); C22C 38/58 (2013.01)

Citation (examination)

Designated contracting state (EPC)

DE FR GB SE

DOCDB simple family (publication)

WO 8702388 A1 19870423; DE 3586247 D1 19920723; DE 3586247 T2 19930225; EP 0241553 A1 19871021; EP 0241553 A4 19890118; EP 0241553 B1 19920617

DOCDB simple family (application)

JP 8500573 W 19851015; DE 3586247 T 19851015; EP 85905113 A 19851015