TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
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J557RH
天津市金桥焊材集团股份有限公司
AWS A5.5 E8015-G
ISO 2560-A-E 46 4 Z B 22 H5
J557RH is a low-alloy steel welding electrode with low-hydrogen sodium coating, which adopts DCEP connection method. It is permitted for all positions welding and AC/DC both can be applied.. The deposited metal has low diffusion hydrogen content, excellent plasticity, toughness and crack resistance.
The product is applicable for welding important structures of low alloy steel such as pressure vessels, marine engineering, bridges and ships.
1. Before welding, the welding electrode should be baked at 400℃ for 1h, and put in an incubator at 100 - 150℃ for ready use.
2. Impurities such as rust, oil stain and moisture must be cleared off of the work piece before welding.
3. Operating with short arc and narrow gap when welding.
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