SH/T 3611-2012 (English Version) PDF

Scope: This regulation stipulates the process qualification, welder examination, welding process and welding inspection requirements for welding of flammable fluid transportation pipelines in acidic environments (HS volume content is greater than or equal to 5%) in oil and gas field surface gathering and station engineering construction. This procedure is applicable to the welding of flammable fluid transportation pipelines in acidic environments using electrode arc welding, metal powder core downward welding, gas tungsten arc welding, and gas metal arc welding in the construction of oil and gas field surface gathering and transportation and station projects.

SH/T 3611-2012 Referenced Document

GB/T 15970.2 Corrosion of metals and alloys-Stress corrosion testing--Part 2: Preparation and use of bent-beam specimens
GB/T 20972.3-2008 Petroleum and natural gas industries.Material for use in HS-containing environments in oil and gas production.Part 3:Cracking-resistant CRAs(corrosion-resistant alloys)and other alloys
GB/T 4157 Laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in H2S environment*， 2017-09-29 Update
GB/T 4340.1 Metallic materials.Vickers hardness test.Part 1:Test method
GB/T 8650 Evaluation of pipeline and pressure vessel steels for resistance to hydrogen-induced cracking*， 2015-12-10 Update
NACE MR0175
NB/T 47014 Welding procedure qualification for pressure equipment
SH/T 3549 Specification for construction and acceptance of combustible fluid pipage in acid service condition
TSG Z6002-2010 Detailed Rules for Examination of Special Equipment Welding Operators

2012 SH/T 3611-2012 Welding specification of combustible medium piping in acid service condition