DL/T 869-2012
The code of welding for power plant (English Version)

Standard No.

DL/T 869-2012

Language

Chinese, Available in English version

Release Date

2012

Published By

Professional Standard - Electricity

Status

Be replaced

Replace By

DL/T 869-2021

Latest

DL/T 869-2021

Replace

DL/T 869-2004

Scope

This standard specifies the design, installation, maintenance, and renovation projects of thermal power plants and their supporting processing and manufacturing of boilers, pressure vessels, pressure pipes, steel structures, and the welding work of welding non-pressure components on pressure components, as well as the main and auxiliary work. Technical requirements for welding repair work of machine parts. This standard applies to electrode arc welding (SMAW), tungsten arc welding (TIG), melting electrode (solid and flux cored wire) gas shielded welding (GMAW, FCAW), gas welding (OFW), submerged arc welding (SAW) and other welding methods. This standard also applies to the welding of non-pressure structures, seals and general support structures.

DL/T 869-2012 Referenced Document

• DL/T 438 Technical Supervision Regulations for Metals in Thermal Power Plants*， 2023-10-11 Update
• DL/T 675 Examination codes for qualification of non-destructive testing personnel of electric power industry*， 2014-10-15 Update
• DL/T 678 General technical conditions for welding of power steel structures*， 2023-10-11 Update
• DL/T 679 Code for welder technical qualification
• DL/T 734 Guidelines for Welding Repair Technology of Boiler Drum in Thermal Power Plant*， 2017-11-15 Update
• DL/T 752 Technical regulations for welding of dissimilar steels in thermal power plants*， 2023-10-11 Update
• DL/T 753 Technical guide for repair welding of cast steel parts in steam turbine*， 2015-07-01 Update
• DL/T 754 Code of the welding technique for bus*， 2013-03-07 Update
• DL/T 819 Technical specification for welding heat treatment in thermal power plants*， 2019-10-01 Update
• DL/T 820 The code of ultrasonic inspection section for butt welds of pipes
• DL/T 821 Radiographic Inspection Technology and Quality Grading of Metal Fusion Welded Butt Joints*， 2017-11-15 Update
• DL/T 868 Qualification standard for welding procedures*， 2014-03-18 Update
• DL/T 884 Technical Guidelines for Metallographic Inspection and Evaluation of Thermal Power Plants*， 2019-10-01 Update
• DL/T 905 Technical specification for welding repair of steam turbine blades and water turbine runners*， 2016-12-01 Update
• DL/T 931 Examination procedures for physical and chemical inspectors in the electric power industry*， 2017-03-28 Update
• DL/T 991 Technical Guidelines for Metal Emission Spectroscopy Analysis of Power Equipment (replacing DL/T 991-2006)*， 2022-11-04 Update
• GB 5310 Seamless steel tubes and pipes for high pressure boiler
• GB 6819 Dissolved acetylene
• GB 713 Steel plates for boilers and pressure vessels*， 2014-06-24 Update
• GB/T 11345 Non-destructive testing of welds, ultrasonic testing technology, testing levels and assessments
• GB/T 12470 Solid wire electrodes, tubular cored electrodes and electrode/flux combinations for submerged arc welding of creep-resisting steels*， 2018-03-15 Update
• GB/T 17394 Metallic materials--Leeb hardness test
• GB/T 3323 Radiographic examination of fusion welded joints in metallic materials
• GB/T 4842 Argon*， 2017-11-01 Update
• GB/T 5293 Solid wire electrodes, tubular cored electrodes and electrode/flux combinations for submerged arc welding of non alloy and fine grain steels*， 2018-03-15 Update
• GB/T 985.1 Recommended joint preparation for gas welding,manual metal arc welding,gas-shield arc welding and beam welding
• GB/T 985.2 Recommended joint preparation for submerged arc welding

DL/T 869-2012 history

• 1970 DL/T 869-2021 Welding Technical Regulations for Thermal Power Plants
• 2012 DL/T 869-2012 The code of welding for power plant
• 2004 DL/T 869-2004 The code of welding for power plant
• 1970 DL 5007-1992 Code for design of erection and acceptance for power plant construction (welding section)