Issues regarding standards for welding materials used in pressure vessels
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May I ask what standards are used to select welding materials when manufacturing pressure vessels? For example, for carbon steel and low-alloy steel, what standards govern the selection of welding wires and electrodes? And the same applies to stainless steel – what standards are used in that case?
The welding material standard for pressure vessels is NB/T 47018
Should the welding materials be determined by the welding engineer? It is also necessary to develop WPS and PQR. WPS is the Welding Procedure Specification, while PQR is the Welding Procedure Qualification.
Select by WPS. . . This is the most accurate. .
NBT 47015-2011 \"Welding Code for Pressure Vessels\"
It is determined by taking into comprehensive consideration the Technical Specifications for Welding Materials Used in Pressure Vessels, the Welding Procedure Specifications for Pressure Equipment, and the enterprise’s welding procedure qualification