YB/T 5221-1993
Alloy structural steel round tube billet (English Version)

Standard No.

YB/T 5221-1993

Language

Chinese, Available in English version

Release Date

1994

Published By

Professional Standard - Ferrous Metallurgy

Status

Be replaced 2015-04

Replace By

YB/T 5221-2014

Latest

YB/T 5221-2014

Replace

GB 11171-1989

YB/T 5221-1993 history

• 2014 YB/T 5221-2014 Alloy structure steel round tube blank hot rolled and forged for making seamless tube
• 1994 YB/T 5221-1993 Alloy structural steel round tube billet