Duplex stainless steel have high level corrosion resistance and formability,weldablility and conductivity. steel grade s32205.s31803.s32750.s32760 are popularly used in sea water desalination project ,oil &gas projects. Junyue steel succeed in producing duplex stainless steel pipe fittigs with seamless duplex stainless steel pipe and duplex stainless steel flange with duplex stainless steel round bars .