What kinds of welding rods are used in all kinds of steel bars?
1., you ask questions, ask the steel bar, but it is alloy steel. And the welding of the steel bar, I have already answered.2. on the alloy steel welding, different uses have different requirements, such as construction, petrochemical, power, ships and so on have their own specifications. You should first find out what your purpose is, and then look for the requirements of the industry.
One or two, 422, three, 502, 506
Type of electrodeThe type of welding rod is determined by the relevant national standards and international standards. EXXX, structural steel, for example, model establishment method for the letter "E" said electrode, first, second said that the minimum tensile strength of weld metal, third digit electrode welding position, the third, fourth digits of the welding current type and type of coating.Common modelGMT-ZT20 cast iron welding rodThe cast iron on the stamping die is repaired by welding, and the welding layer is martensite. The wear resistance is excellent.GMT- ZT30 cast iron welding rodIt is applied to the welding of grey cast iron and nodular cast iron, and the machinability is good. Strength is two times of ordinary electrode.GMT- ZT40 cast iron welding rodThe cast iron on the stamping die is repaired by welding, and the welding layer is martensite. The wear resistance is excellent.GMT- ZT50 cast iron welding rodMainly used for bottoming buffer layer. High strengthGMT- ZT60 cast iron welding rodLow temperature welding, mainly for the production of hard render buffer layer.GMT- ZT65 cast iron welding rodMainly used in cast iron, alloy cast iron, steel and cast iron welding, etc.
