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Scaffolding hot dip galvanized GI round steel pipes with thread end
Scaffolding hot dip galvanized scaffold welded construction round steel pipe tube with thread end Durability: in a suburban environment, the standard galvanized rustproof thickness can be maintained for more than 50 years without repair;In urban or offshore areas, the standard hot dip galvanized rust barrier can be maintained for 20 years without repair. It also need as water pipe or other liquid pipes, bridge building construction , the zinc coating can be choose, usually 220G above,if client has more higher requirement, pls contact us.Scaffolding hot dip galvanized GI round steel pipes with thread end
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hot sell Black Steel Pipe, ERW low carbon hollow section tube
Black annealed steel tube is also called cold rolled steel pipe and tubes,it is also called hollow secion it is one of the most common steel tubes. with the ERW tecnical , Low carbon material , If cold rolled steel is heated to annealing temperature, the surface color turns black due to high temperature contact with air, it is called black annealed steel pipes. Its surface has not been polished so it is black. The physical properties become soft, convenient for further welding into steel pipe. Common hardness 57HRB, can also be reduced to different hardness according to need.
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Q235B hot rolled carbon steel black shs rhs round square and rectangular tube hollow section
Hot tube refers to the pipe fittings produced by hot rolling process, which is a common mechanical structure. Hot rolling refers to rolling above the recrystallization temperature. Hot rolling process can significantly reduce energy consumption and cost. Hot rolled metal plasticity is high, when the deformation resistance is low, greatly reducing the energy consumption of metal deformation, and can improve the processing performance of metal and alloy, the casting of the state of the bulky grain crushing, significant crack healing, reduce or eliminate the casting defects, the as-cast into deformation, improve the processing performance of alloy.
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ASTM A500 EN10219 carbon steel black shs rhs square and rectangular tube hollow section
1) Natural Black; 3) Color painted on natural black steel pipe; 5) 3PE coated on natural black steel pipe; 7) Pre galvanized zinc coating 30g/m2 or customized(30g/m2 - 100g/m2); 2) Oiled with pvc wrapped; 4) Color painted on Galvanized steel pipe; 6) 3PE coated on Galvanized steel pipe; 8) Hot dip galvanized zinc coating 200g/m2 or customized(200g/m2 - 500g/m2)
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