q345b Seamless square steel tubing
Steel material:
Q195 → Grade B, SS330,SPHC, S185
Q215 → Grade C,CS Type B,SS330, SPHC
Q235 → Grade D,SS400,S235JR,S235JO,S235J2
Standard:
BS EN10296,BS EN10025,BS EN10297,BS6323, BSEN10219,BSEN10217,GB/T13793-1992,GB/T14291-2006, GB/T3091-1993,GB/T3092-1993,GB3640-88
Ends:
1) Plain
2) Beveled
3) Thread with Coupling or cap
End protector:
1)
Plastic pipe cap
2) Iron protector
Surface Treatment
1)
Bared
2) Black Painted (varnish coating)
3)
Galvanized
4) With Oiled
5) 3 PE, FBE, corrosion resistant coating
Technique
Electronic Resistance Welded (ERW )
Electronic Fusion Welded (EFW)
Double Submerged Arc Welded (DSAW)
The
square tube is a hollow square cross-section of light thin-walled steel pipe,also known as steelcold-formed profiles.It is made by the Q235 hot rolled or cold rolled strip or coil for parent metal forming by cold bending after the high frequency welding steel of square cross-section shape and size.Hot-rolled special thick-walledsquaretubes in addition to wallthickness of thickening, the size ofthecorner and edge straightness toachieve even more than theresistancewelding of cold formed square tubelevel.
q345b Seamless square steel tubing