... building of ships, bridges, machinery, and cars, etc. E70T-5 E500T-5 With good mechanics property, low expansive hydrogen content, good crack ... and high strength steel, such as high-rise buildings, blast furnaces, etc. E70T8-GE500T8-GMaterials without any high requirement for toughness, Flux cored welding wire Flux-Cord Wire AWS E71T-1