This code is applicable to the structural welding of industrial and civil steel structure engineering that bears static load or dynamic load and whose steel thickness is not less than 3mm. The welding methods applicable to this specification include electrode arc welding, gas shielded arc welding, self-shielded flux cored welding, submerged arc welding, electroslag welding, gas electric vertical welding, stud welding and their combinations.
GB/T 5117 Covered electrodes for manual metal arc welding of non-alloy and fine grain steels*, 2012-11-05 Update
GB/T 5118 Covered electrodes for manual metal arc welding of creep-resisting steels*, 2012-11-05 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 5313 Thickness direction performance steel plate*, 2023-09-07 Update
GB/T 8110 Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels*, 2020-11-19 Update
GB/T 9445 Non-destructive testing.Qualification and certification of NDT personnel*, 2015-12-10 Update
JG/T 203 Method for ultrasonic testing and classification for steel structures
GB 50661-2011 history
2011GB 50661-2011 Code for welding of steel structures