SQJ551K2
It exhibits high impact toughness at −60°C, excellent all-position weldability, superior process performance, low diffusible hydrogen content, and outstanding crack resistance, making it suitable for welding FH40-grade steel in marine engineering, shipbuilding, steel structures, and bridge construction.
- Commodity name： SQJ551K2
- 国标： T10045 T556T1-1C1A-N3
- 美标： A5.29 E81T1-K2C
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