... Grade:200,300,400 series 3.Diameter:6-360mm Stainless Steel Round Bar 1) Grade : 321, 304, 304L, 316, 316L ... , 317, 317,310S 2) Processing :cold/hot drawn,cold rolled etc.Stainless Steel ... assure of our best attention all the time. type stainless steel round bar size3 mm to 240mmgrade321, 304, 304L, 316, ... part inspection. ASTM 316 /316L Stainless Steel Round Bar