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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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Sales Promotion CR pipe black annealed steel pipes and tubes
Sales Promotion China Manufacturer Square/Round,cold rolled steel pipe CR pipes,black pipe and tube, it is cold rolled pipes, also can be called black annealed steel pipes, the ductility usually good than hot rolled pipes, the hardness less usually 40-55, this not play good than hot rolled, it usually used on , Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose and so on .
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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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Manufacturer ERW Welded Steel Pipe Iron Black Tube Gi Galvanized Steel Pipe For Construction
ERW is Electric Resistance welding,ERW pipe and submerged arc welding pipe welding method is significantly different, The pressure welding method without filler metal is adopted, and no other components are filled in the welding seam. By the skin effect and proximity effect of high-frequency current, the plate edge is instantly heated to the welding temperature, and the weld with forged structure is formed by extrusion roller. High quality steel pipe requires weld line or off-line heat treatment to refine the weld zone. The weld line of high quality ERW welded pipe can reach the same toughness level as the base metal, which cannot be achieved by submerged arc welding process
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steel balustrade isolation column stair guardrail using steel pipe with a flower
The steel balustrade isolation column stair guardrail using steel pipe with a flower . desgin style: Modern style Brand & Grade : Q195&Q215&Q235&Q345 Normal Pipe Size (O.D)MM11.8/13/814/15/1617.5/18/19/20/21/22/23/24/25/26/27/27.5/28/28.6/29/30/31/32/33.5/34/35/36/37/38/39/40/42/43/44/4547/48/50/50.8/52/54/56/58/60/63/65/67/68/70/73/75/76/80/85/100/114/140/165/102/108/121/127/133/152/159/168/177.8/180/190/203/219/244.5/273 Normal Pipe SizeDNDN15 → DN250 Normal Pipe SizeInch1/8" → 10" ThicknessMM0.3 → 14mm
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Bright steel Pipes and tubes for furniture
bright steel pipes, this kind of pipes surface is different , it is more smooth and more white color, the Tensile properties more good than usual pipes, because it is longer time in the annealed produce process. it more beautiful, and smooth, it widely used in furniture making directly. it is difference from cold hard steel pipes.
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