Welding Inspection of Cryogenic Pressure Vessel and Points for Attention 1. Selection of welding materials Welding Inspection of Cryogenic Pressure Vessel – The selection of welding materials for low temperature pressure vessel steel must ensure that the welding joints contain the least harmful impurities such as sulfur, phosphorus, oxygen and nitrogen, will obviously reduce the toughness of the welded joint. When the load is large at low temperature, the same requirement should be applied to the non-pressurized accessory welding joint welded with the low-temperature pressurized component, and the welding material should be selected according to the welding requirement when the load is small. Low hydrogen basic electrodes for welding pressurized or pressurized components to non-pressurized components of cryogenic pressure vessels should be selected from the shielded metal arc welding of GHT5117“Carbon steel electrodes” and GBT5118“Low alloy electrodes”. Submerged arc welding flux should choose basic or neutral flux. 2. Product welding […]
Cryogenic Pressure Vessel
1 post