Can welding of stainless steel plate and ordinary steel pipe be welded with thj422 welding rod?
Is not easy, but also should choose J422 to weld
No, stainless steel electrodes should be selected.
J: stands for structural steel welding rod.42: two figures indicate that the minimum value of tensile strength of deposited metal is 42kgf/mm2 (412MPa), and the minimum value of the yield strength of deposited metal is 34kgf/mm2 (430MPa).2: third digit "2" indicates that the type of coating is titanium calcium type, direct current or AC power supply.According to the national standard GB/T5117 - 95, it is E4303 type ordinary carbon steel welding rod.Two, stainless steel and ordinary steel can be welded, the electrodes used must be the welding of the stainless steel or stainless steel welding rod or wire E31015 E31016.Three, in general, does not recommend the use of stainless steel and carbon steel welding in one place, the use of flange of stainless steel and carbon steel is more appropriate, because long-term exposure, will produce "carburization reaction", the impact characteristics of stainless steel.
