Can 50Mn2 casting be welded with 507 electrodes?
50Mn2 is medium carbon steel, while J507 electrode is a low carbon component. If 507 electrodes are used to weld, the carbon content of the weld seam is lower, which will reduce the joint strength. Therefore, the welding of 50Mn2 steel with J507 welding rod can not guarantee the strength of the weld seam. It only applies to the welding of the weld when the strength of the joint is not high.
1, the tensile strength of 50Mn2 (b/MPa): 930.2, welding with 507 electrodes is not possible, the intensity difference is too great.3, you can also choose J807 or J 907.4, welding is quick cooling.
50Mn2 is a kind of high strength carbon quenched and tempered steel, tensile strength (b/MPa): more than 930, and steel castings, welding a relatively high degree of difficulty. If the requirements are relatively high, you can choose MG600 electrode, if the strength requirements are not too high, the use of 507 electrodes can still be considered.MG600 (MG600TIG)MG600 is a universal, high efficiency, high strength chromium nickel alloy welding rod (welding wire). It has excellent plasticity, toughness and crack resistance. It is almost suitable for all kinds of common steel products. With excellent welding process performance, arc stability, easy to slag, less spatter, welding uniform and beautiful.Application: suitable for welding tools and moulds, high-speed tool steel, hot work tool steel, steel, cast steel, T-1 steel, steel, vanadium steel, seismic spring steel, martensitic stainless steel, austenitic stainless steel, ferritic stainless steel, and the unknown as well as between the various different types of steel welding etc.. Such as high pressure valves, broken bolt clearance, shaft transformation, etc., the effect is very satisfactory.Mechanical properties of welded joints;Experimental resultsTensile strength maximum 124000psi (pound / square inch), i.e. 855 Newtons / mm2The maximum yield strength is 103000psi (pound / square inch), i.e., 710 Newtons / mm2The maximum elongation rate is 22%HB300 work hardening after Brinell hardness welding HB450
