SH/T 3520-2004
Welding specification of chrome molybdenum steel for petrochemical engineering (English Version)

Standard No.

SH/T 3520-2004

Language

Chinese, Available in English version

Release Date

2004

Published By

Professional Standard - Petrochemical Industry

Status

Be replaced 2015-05

Replace By

SH/T 3520-2015

Latest

SH/T 3520-2015

Replace

SH 3520-1991

Scope

1.1 This regulation specifies the requirements for welding procedure qualification, welder examination, welding procedure, welding inspection and post-weld heat treatment of chromium molybdenum heat-resistant steel. This procedure applies to the welding construction of petrochemical chromium-molybdenum heat-resistant steel pipes (including industrial furnace pipes) and equipment. 1.2 The welding methods of molybdenum heat-resistant steel include: a) electrode arc welding; b) negative electrode ammonia arc welding; c) gas metal arc welding, d) submerged arc welding.

SH/T 3520-2004 Referenced Document

• GB 150 Pressure Vessels (Bound Edition)*， 2024-04-18 Update
• GB/T 3375 Welding terminology
• GB/T 4842 Argon*， 2017-11-01 Update
• GB/T 5118 Covered electrodes for manual metal arc welding of creep-resisting steels*， 2012-11-05 Update
• GB/T 983 Covered electrodes for manual metal arc welding of stainless and heat-resisting steels*， 2012-11-05 Update

SH/T 3520-2004 history

• 2015 SH/T 3520-2015 Welding specification of chrome molybdenum steel in petrochemical industry
• 2004 SH/T 3520-2004 Welding specification of chrome molybdenum steel for petrochemical engineering
• 1970 SH 3520-1991 Technical specification for welding of chrome-molybdenum heat-resistant steel pipes in petrochemical engineering

SH/T 3520-2004 Welding specification of chrome molybdenum steel for petrochemical engineering has been changed from SH 3520-1991 Technical specification for welding of chrome-molybdenum heat-resistant steel pipes in petrochemical engineering.