S355J2G3 low alloy steel welding

S355J2G3 steel belongs low-alloy high-strength structural steel under European standard EN10025-2,by the ECISS / TC10 "structural steel grade and quality" technical committee,J2G3 means that the delivery status of normalizing,G3 and G4 are indicative of deoxygenation.S355J2G3 steel widely used in the most demanding environments,such as offshore industry,construction and manufacturing industries,pipelines,pipelines,highway bridges,building structures,fans,pumps,lifting equipment,port equipment.

Selection of welding methods:

S355J2G3 low alloy steel welding,its goal is to get the appropriate joint strength and good toughness.Due to the strengthening of the alloying elements,the welding line energy should be controlled to avoid softening or embrittlement in the heat affected zone during the welding process.According to the product structure and actual situation production,the technical staff using MAG multi-layer welding welding process.