The sA572 grade 50 steel plate commonly used in hot rolling condition, sa572 grade 50 steel plate has good comprehensive mechanical properties of low temperature impact toughness, cold punching and cutting are good, a wide application in our country, sa572 grade 50 steel plate can be made to build the railway vehicle bridge of large ship oil tank lifting machinery factory steel pipe boiler pressure vessel, such as the load of welded structure, which requires not only has good mechanical properties, and sa572 grade 50 steel plate has good welding performance.
The weldability of sa572 grade 50 steel plate mainly depends on its chemical composition, which is usually manifested in two aspects: one is the various metallurgical defects caused by the sa572 grade 50 steel plate welding process, especially the damage of cracks; The second is the change of the properties of the sa572 grade 50 steel plate base metal in the heat affected zone during welding.
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