QJ 501A-1998
Technical conditions for stainless acid-resistant steel and heat-resistant steel forgings (English Version)

Standard No.

QJ 501A-1998

Language

Chinese, Available in English version

Release Date

1998

Published By

Professional Standard - Aerospace

Status

Withdraw

Replace By

QJ 501B-2014

Replace

QJ 501-1989

QJ 501A-1998 history

• 1970 QJ 501-1989
• 1970 QJ 501-1980

QJ 501A-1998 Technical conditions for stainless acid-resistant steel and heat-resistant steel forgings has been changed from QJ 501-1989 .

QJ 501A-1998 Technical conditions for stainless acid-resistant steel and heat-resistant steel forgings was changed to QJ 501B-2014 Specification for stainless steel and heat-resistant steel forgings.