Diffusion engineers limited, an iso 9001-2000 certified company, produces wide range of maintenance products. Dif fill alloy is a part of those products. It is a stainless steel filler alloy for tig, mig, saw welding of straight chrome steels. It is used for joining as well as surfacing applications, made of alloy steel stainless steel, service temperature up to 450 degree celsius. Dif fill has excellent abrasion, erosion, metal to metal wear resistance properties. Dif fill alloy is used in welding of corrosion and heat resistance steel grades. Dif fill alloy has weld surfacing on the surface of gas, water and steam fittings operating at temperatures up to 450 degree celsius. Dif fill alloy is especially suitable for building up edges.