Tianjin Lefin Industrial Co., Ltd is one of the most experienced manufacturers and suppliers of china square steel tube in China. Please feel free to buy high quality china square steel tube from our factory. Good service and reasonable price are available.
China Square Steel Tube, China Rectangular Steel Tube
China Structural Steel Hollow Section (SHS, RHS)
China Box Tubes/Box Sections
Standard:
GB/T 3094 Cold drawn shaped steel tubes.
GB/T 6728 Cold forming hollow sectional steel for general structure.
Steel Grade: Grade 20, Q235B, Q355B, Q355C, Q355D, Q355E.
Sizes: 10X10mm - 1200X1200mm; 20X10 - 1050X1500mm
Thickness: 1.5mm - 60mm
Grades Equivalents:
GB Q235B, EN S235JR, DIN ST37-2, ASTM Grade.1015/Grade.C/Grade.D/SSGrade.33, JIS SS400
GB Q355B, EN S355JR, DIN ST52-3, ASTM A572/SSGrade.50, JIS SS490
GB Grade 20, EN P235GH
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