What kind of welding rod or welding wire for welding Q245R steel?
AC welding machine has J422, J426, DC welding machine with J427 good point, welding wire with TIG-50, welding electrode according to instruction before drying, welding wire rust removal.
J427 for welding rod, 50-6 for welding wire.
Q245R is generally used in boiler or pressure vessel, if it is a large diameter cylinder welding body in wall thickness below 8mm recommended the use of arc welding J507 welding rod, double welding, carbon arc gouging back, to obtain inspection qualified; wall thickness is thick, can be used for submerged arc welding. The use of H08MnA wire HJ431 welding flux;If the smaller diameter of the cylinder, the inner wall of the can go in welding, open V groove on the weld position, the use of manual TIG welding primer (ER50-6 wire), welding electrode (J507 electrode) filling cover, if the wall thickness is more than 10mm, you can also consider the use of submerged arc welding (filling cover H08MnA HJ431 solder wire);If the welding weld is non pressure parts, you can use the CO2 gas shielded arc welding, using 1.2 or 1.6 ER50-6 diameter wire welding, weld spatter if you need better or less, recommend the use of Ar:CO2 mixed gas 8:2 welding.
