TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
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J857Cr
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 P
J857Cr 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 welding performance. The deposited metal has excellent mechanical properties.
The product is applicable for welding high-strength steel with corresponding strength grade, such as 14CrMnMoVB, 30CrMo, 35CrMo steel, etc.
1. Before welding, the welding electrode shall be baked at 400℃ for 1h, and put in an incubator at 100 - 150℃ for ready use.
2. Before welding, remove the rust and dirt of the work piece and preheat it to about 200℃.
3. After welding, it can be tempered at 600-650℃ to remove internal stress.
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