ACE-6137-O ACE-6137-S Main chemical component C:0.80~1.50 Mn:12.00~15.50 Cr:5.50~9.50 Others:2.00~3.00 Hardness：250~300HB Application: Rail surface and said rail(turning place) of trolley and train etc. Welding flux: ACE-SJ203 Nantong Ace welding produces all kinds of overlaying hardfacing flux cored welding wire for steel works, for electric factory, for mining machine, for mould, for valve, for sugar mill, for digger etc. we have the ability to develop new type of wires or copy the models. Welding wire price China factory Welding wire price China factory Hardfacing welding wire price China factory Flux cored wire price China factory