What type of wire for automatic submerged arc welding of Q345B steel plate?
H08A definitely not, low strength, flux 431, welding wire with 10MnSi
Do not know the form of welded joints? If there is no groove on the butt joint, the HJ431 and H08A welding wires can be used. If the bevel groove, you can use H08MnA, H10Mn2 welding wire and HJ431 combination. If it is angle joint, H08A and flux HJ431 combination can be adopted.
SJ101+H08MNA is usually used
HJ431+H08MnA, or SJ101 (301), +H10Mn2 and so on, are all possibleGenerally, the welding of sheet metal is made by HJ431+H08MnA, and SJ101 (301) +H10Mn2 is used as medium plateThe reason is that the trace elements in welding materials are different, resulting in some mechanical properties of weldability, forming and weldingDifference, of course, often welding, know why.The pH of welding flux is different to the appearance of weld and the sensitivity of crackGenerally speaking, SJ101+H10Mn2 is preferred in the process of welding. Now the general units are basically the welding mix
