TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
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J857CrNi
天津市金桥焊材集团股份有限公司
AWS A5.5 E12015-G
ISO 18275-B-E 83 15-G A
J857CrNi is a high-strength steel welding electrode with low-hydrogen sodium coating, which adopts DCEP connection method and is permitted for all positions welding, with good excellent welding performance. The deposited metal has excellent low-temperature toughness and crack resistance.
The product is applicable for the repair welding of defective train coupler made of E-grade steel and the welding of 830MPa-grade high-strength steel, such as WEL-TEN80 and WEL-TEN80C.
1. Before welding， the welding electrode must be baked at 400℃ for 1 hour for ready use.
2. Impurities such as rust, oil stain and moisture must be removed from the work piece before welding.
3. The work piece should be tempered at 620℃ after welding to eliminate its internal stress.
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