Ni307A nickel and nickel alloy electrode Model GB / T: ENiCrFe-3 is equivalent to AWS: ENiCrFe-3 Description: Low hydrogen type Ni70Cr15 heat-resistant alloy electrode, weld have the right amount of manganese, niobium and other alloying elements, deposited metal has good crack resistance, DC reverse. Uses: Used for welding heat-resistant, corrosion resistant nickel-based alloy requirements, such as Inconel 600, 601, etc., can also be used in some hard solder alloys, dissimilar steel welding and surfacing. Deposited metal chemical composition /% C≤0.1 Mn 5-9.5 Si≤1 Ni 59 Fe≤10 Ti≤1 Nb + Ta 1-2.5 S≤0.015 P≤0.03 Cu≤0.5 Cr 13-17? Ni307B nickel and nickel alloys electrode Model GB / T: ENiCrFe-3 is equivalent to AWS: ENiCrFe-3 Description: Low hydrogen type nichrome electrodes, weld metal has the right amount of manganese, DC reverse. Uses: Used for welding heat-resistant, corrosion resistant nickel-based alloy requirements, such as Inconel 600, 601, etc., can also be used for welding dissimilar steel or corrosion resistant surfacing material. Deposited metal chemical composition /% C≤0.1 Mn 5-9.5 Si≤1 Ni≥59 Fe≤10 Ti≤1 Nb 1-2.5 S≤0.015 P≤0.03 Cu≤0.5 Cr 13-17?