mailto:phoebus123(At)126(Dot)com Features: (1) Grade: 301, 304, 304L, 310S, 316, 316L, 317L, 321, 321H etc. (2) Specification: 5.5mm~250mm (3) Calculation: W=0.00617*d*d (4) Application: if the diameter is between 5.5mm~25mm, it is served as the steel bar, the bolt and each kind of machine parts; if is larger than 25mm, it can be used as machine parts, stainless steel pipe's. Primary Competitive Advantages High-quality Competitive price Satisfactory service.