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Hot-formed square and rectangular steel tubes are steel billets or strips heated to 850-1250℃, then rolled, welded (or seamlessly formed), and finally sized to square or rectangular cross-sections. They combine high strength, good work ability, and strong adaptability, and are widely used in construction, machinery, transportation, and other fields.
Cold rolled tube refer to steel pipes formed through cold processing at room temperature. They are characterized by high precision and high performance, and are widely used in various fields. Manufacturing process: There are mainly two types of processes: 'round-to-square' and 'direct square.' The 'round-to-square' process first shapes the strip steel into a tube and welds it into a round pipe, then uses a sizing machine to form it into a square or rectangular pipe; the 'direct square' process bends the strip steel directly into a square or rectangular pipe blank, and then welds and shapes it.
ASTM A500 Rectangular Steel Tube
This standard covers cold-formed welded as well as seamless round, square, rectangular, or special-shaped structural tubes, mainly used for welding, riveting, or bolting connections in bridges and buildings.
Product name: Sharp corner hollow section、Structual steel box section、SHS RHS Sharp corner hollow section SHS: Out Diameter:20*20 - 1200*1200 MM Wall Thickness: 1.3 - 50 MM RHS: Out Diameter:30*20 - 1500*1000 MM Wall Thickness: 1.3 - 50 MM Length:6m or 12m or according to customer requirment Standard:ASTM A500、EN10219、ASTM A106、EN10210、AS1163、JIS G3466 process:Cold-Form or Hot-Form
1.5 Inch Hot Dip Galvanized Pipe
Product name:1.5 inch Hot dip Galvanized Pipe、1.5 INCH GI Pipe、1.5 inch Galvan Pipe Thickness: 2.5 MM or 3.2 MM or 4.0 MM Length:1-12 M Standard: EN10225、EN39、BS1387、ASTM A53 Description: Due to its corrosion resistance, high strength, and easy connectivity, it is a commonly used pipe material in industrial and civilian applications.
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