HG 20634-1997
Fasteners for steel pipe flanges (American system) (English Version)

Standard No.

HG 20634-1997

Language

Chinese, Available in English version

Release Date

1997

Published By

Professional Standard - Chemical Industry

Status

Be replaced 2009-07

Replace By

HG/T 20634-2009

Latest

HG/T 20634-2009

Scope

This standard specifies the types, specifications, technical requirements and usage regulations of fasteners for steel pipe flanges (American System). This standard applies to fasteners for steel pipe flanges (hexagon head bolts, equal-length studs, fully threaded studs and nuts).

HG 20634-1997 history

• 2009 HG/T 20634-2009 Bolting for use with steel pipe flanges(Class designated)
• 1997 HG 20634-1997 Fasteners for steel pipe flanges (American system)

HG 20634-1997 Fasteners for steel pipe flanges (American system) was changed to HG/T 20634-2009 Bolting for use with steel pipe flanges(Class designated).