5) ACE-328-S Main chemical component: C:0.25~0.50 Si:0.30~0.70 Mn:1.00~1.80 Cr:1.00~4.00 Mo:7.50~9.00 Others:0.50~1.50 Hardness:42~47HRC Application: Blast furnace hopper,hot rolling tool,wrapper roll etc. Welding flux: SJ303 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. Hardfacing welding wire produce factory Welding wire produce factory Flux cored welding wire produce factory Hardfacing welding wire produce factory