... short radius elbows and long radius elbows. Usually, pipe elbows are made of carbon steels, alloy steels, stainless steel, and more. ... Elbow: 1/2”~100" DN15~DN2500Wall thicknesssch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs ... , std,sch5s, sch20s, sch40s, sch80sStandardsANSI, ASTM,DIN, JIS, BS, ISO, GB ...