ASTM A403 standard specification covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. ASTM A403 / A403M standard specification for wrought austenitic stainless steel piping fittings.

ASTM A403 wpl6 elbow after complete quality and performance measure inspection. these are widely appreciated for excellent quality, corrosion abrasion and high tensile strength with long life service.