SQJ621K2
It exhibits high impact toughness at −30°C/−40°C, excellent all-position weldability, superior process performance, low diffusible hydrogen content, and excellent crack resistance, making it suitable for welding EQ550-grade steel in applications such as offshore engineering, shipbuilding, steel structures, and bridge construction.
- Commodity name： SQJ621K2
- 国标： T36233 T622T1-1C1A-N3M1
- 美标： A5.29 E91T1-K2C
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