TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
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A407
天津市金桥焊材集团股份有限公司
AWS A5.4 E310-15
ISO 3581-A-E (25 20) B 4 2
A407 is a Cr26Ni21 pure austenitic stainless steel welding electrode with basic coating. It adopts the DCEP connection method and is permitted for all positions welding. The deposited metal has excellent oxidation resistance at high temperature of 900-1100℃. As the beam formed is pure austenite, its thermal cracking resistance is not as good as that of dual-phase structure.
The product is applicable for welding the same type of heat-resistant stainless steel, chromium steel with high hardenability and dissimilar steel working at high temperature.
1. Before welding, the welding electrode must be baked at about 250℃ for 1h.
2. The operating current should not be too large.
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