TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
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J107Cr
天津市金桥焊材集团股份有限公司
ISO 18275-A-E 89 A Z B 22 H5
J107Cr 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 product is applicable for welding low-alloy high-strength steels with tensile strength equivalent to 980MPa, such as 30CrMnSi and 35CrMo.
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. The work piece must be cleaned of rust and dirt and then preheated to about 300℃.
3. After welding, the work piece should be quenched and tempered through oil quenching at 880℃ and tempering at 520℃ before air cooling to eliminate its residual stress and promote the homogenization of its structure.
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