316L Stainless Steel Square Pipe for shipbuilding Commonly used stainless steel 201, 304, TP304, 304L, TP304H, 321, TP321, 321H, TP316L, 316L, 316Ti, 317L, TP347, 309S, 310S/2520 Special stainless steel S31803, 2205, 2507/S32750, S32760, 904L, 254SMO Alloy series Superalloy: GH3030, GH3039 2205, 2507, 2520/310S, 904L and other materials are available all year round. (304,, TP316L, 310S, 2205 thick-walled pipes, zero-cut non-standard pipes) Special materials and specifications can be customized. Round tube specifications: 12- 830mm 1 60mm (outer diameter wall thickness) Square tube specification: 20-250mm 2-20mm (side length wall thickness) Elbow specification: 12- 426mm 2-20mm (outer diameter wall thickness)