Hot Rolled / ERW Steel Hollow Section Tube, Rectangular Black / Galvanized Square API Pipe Welded tube / ERW tube / steel tube / steel hollow section / structure tube / API pipe / square tube Black or galvanized Description: ERW tube / welded tube / rectangular tube / square tube Standard: ASTM, GB, DIN, JIS Technique: hot rolled or ERW (seamless and welded steel pipe) Thickness: 0.6mm-25mm Specifications: 10*10mm-500*500mm (square) or 20*10mm~600*400mm (rectangular) Implementation of standards: Executable GB6728-2002 standards for structural steel cold-formed hollow Executable JISG3466-88 in Japan to adapt the general scope of Rectangular Pipe Construction Standards Application: Widely used in bridge buildings, construction supports, mechanical tube, and furniture etc. Delivery period: 20 to 30days after we receive the deposits General Packaging: Follow as clients' requirement Our company specializes in manufacturing of steel pipes for structures, electric power transmission project, pipeline of fluid use like water, oil and gas, piling, mechanical industry and municipal project. It has close relationships with many large steel corporations. So it supplies complete steel products according to customers requirements. The products it mainly supplies are: ERW longitudinally welded steel pipes in accordance with DIN, EN, ASTM and API standards. Steel hollow sections hot and cold formed in accordance with ASTM 500, EN 10210 and EN 10219. Seamless steel pipes with heavy wall thickness in accordance with EN 10210, EN 10216, EN 10297, API 5L, ASTM 106, ASTM A53, DIN 2440 DIN 1629. Galvanized steel pipes and tubes in accordance with ASTM A53, ASTM A106, DIN 2440/2444, BS 1387, and JIS C8305 standards. Hot rolled steel beams H & I in accordance with JIS, DIN, ASTM standards. Hot rolled steel round bars in accordance with AISI, ASTM, BS, DIN and JIS standards. Hot & cold rolled steel products of steel strips, steel coils and steel sheets in commercial qualities and in accordance with DIN, EN, and ASTM standards Further steel products are welcome upon customers requests.