AWS E8015-B2 Low-alloy steels Metal powder welding wire Welding stuff

AWS E8015-B2 is suitable for welding boiler heating surface tube and power station water wall working temperature below 550℃. Steam pipe, high pressure vessel, such as 15CrMo tube plate, A335-P11 tube, A387Gr.11 plate; And can also be used in hydrogenation reactor, heat exchanger and other high pressure vessels and boiler pipeline welding, can also be used to weld 30CrMnSi cast steel.

The groove is usually processed by flame or plasma cutting process. When necessary, the cutting should also be preheated, and the PT test should be done after grinding to remove cracks on the groove. V-shaped groove is usually selected, and the groove Angle is 60°. From the perspective of preventing cracks, a larger groove Angle is beneficial, but it increases the amount of welding. At the same time, the groove and both sides of the inside are polished clean, and the dirt such as oil, rust and moisture are removed (dehydrogenation and porosity prevention).