What is the difference between electrode type and brand?
Model and brand are different, it is to see the material you have to weld the workpiece to match, ordinary use is 422 knot, special steel to use 506 knot, 507 knot
J422 acid electrode type GB E4303Structural steel welding rod, weld metal tensile strength of not less than 420Mpa, titanium oxide calcium type leather, AC and DC dual-use, mainly for welding low carbon steel and low strength alloy steel, such as 09Mn2 and so onJ427 basic electrode type GB E4315Structural steel welding rod, weld metal tensile strength of not less than 420Mpa, low sodium hydrogen type leather, DC reverse welding, mainly used for welding of important low carbon steel and low alloy steel, such as 09MnSi, etc.
It doesn't make any difference. Just use it. It's mainly the function of welding machine!
