The welding of A514 steel has the problems of cold cracking tendency and embrittlement and softening of heat-affected zone performance. A514 steel is determined to use electrode arc welding and flux cored wire by selecting low hydrogen welding materials, welding methods with small heat input, supplemented by reasonable preheating temperature and process design that does not require heat treatment after welding, and passing welding procedure qualification tests. The welding process parameters of gas shielded welding and solid wire gas shielded welding meet the welding requirements of AWS D1.1 and CCS at the same time.
A514 steel plate heat treatment
To comply with the specified tensile and Brinell hardness requirements, the plate shall be heat treated. That is, A514 steel plate is heated to not less than 1650F (900°C), quenched in water or oil, and tempered at not less than 1150F (620°C).
A514 Steel Plate Production Standard
ASTM A514/A514M, ASTM A514/A514M, high yield strength quenched and tempered alloy steel plates suitable for welding.
