SPECIAL QUALITY EQUIREMENTS

- Apr 13, 2018 -

DIN 2394 WELDED AND SIZED PRECISION STEEL TUBES

Scaffolding Tube:
GB 15831 Steel tube scaffold couplers
EN 39 Loose steel tubes for tube and coupler scaffolds 
BS 1139 Metal scaffolding

Steel Grade:
GB/T 13793, GB/T 6728, GB 15831: 
Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 
EN 10210, EN 10219, BS 1387: S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44,ST52
ASTM A500, ASTM A 53: Gr. A, Gr B, Gr C, Gr.D, DC01, DC03, 1008, 1010
JIS G 3466: SS330, SS440, SS490, SPHD, SPHE

Process: ERW and Seamless

Size:
Hollow Sections: 
Square:10 mmx10mm - 500 mmx500mm
Retangular:10mm x 20mm - 600mmx400mm
Round: 1/8" - 4" 
Wall Thickness: 0.5 - 20.0mm
Length:0.3 mtr - 18 mtr as customer required

Scaffolding Tube: 
Outer Diameter: 38mm, 42mm, 48.3mm-48.6mm 
Wall Thickness: 2.0mm, 2.5mm, 2.75mm, 3.0mm, 3.25mm, 3.85mm, 4.0mm 
Length: 0.3mtr -18 mtr

Process: 
Seamless: Hot Rolled, Hot Explored
Welded: ERW, HFW
Coating: Hot-dipped Galvanised, Electrical Galvanised

Raw Material: 
Seamless: Pipe Billet( Hot Rolled, or Con-casting), Mother Pipe
Welded: Hot Rolled Steel Coil (HRC) , Cold Rolled Steel Coil (CRC), Pre-pained Galvanized Steel Strip

End: Square cut, Burr removed
Surface:Lightly oiled, Hot dip galvanized, Electro galvanized, Black 
Heat Treatment: Bright Annealed, Black Annealed

Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips

Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield 
strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection
Mill Test Certificate: EN 10204/3.1B


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