Welded and seamless steel square tube is made of steel tubes, which are unpacked, flattened, crimped, welded to form round tubes, which are then rolled into square tubes and then cut to the required length. The square tube is divided into structural square tube, decorative square tube and building square tube according to the purpose, mechanical square tube, etc
Standard: ASTM,AISI,JIS,DIN,EN etc
WT:1 - 300 mm
Type:Welded & Seamless
Welded and seamless steel square tube good comprehensive mechanical properties, weldability, cold and hot workability and corrosion resistance, and has good low temperature toughness.used construction, machinery manufacturing, steel construction and other projects, shipbuilding, solar power support, steel structure engineering, electric power engineering, power plant, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, boiler construction, high-speed road railing, Building construction, pressure vessels, oil storage tanks, bridges, power station equipment, lifting transport machinery and other high-load welded structural parts.
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