1>30 degree stainless steel elbow 2>Material:201,301,304,304L,309S,310S, ... :SCH5S-XXS 4>OD:1/2"-80" 30 Degree Stainless Steel Elbow Material Carbon Steel(ASTM A234 Gr.WPB, ASTM A106, ASTM 516 ... ASTM A285 Gr.ST37,ST52,,ST35,ST45,S235JR etc)Stainless Steel(ASTM A403 WP304,201,301,304L,309S,310S,316, ... 1/2"-80" Degree Radius 22.5º, 30º, 45º,60º, 90º,180 º or as your demand Application Elbow is mainly used ...