| After-sales Service: | Support |
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| Warranty: | Support |
| Type: | Galvanized+ |
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Hot-dip galvanized pipe is to pickle the steel pipe first to remove iron oxide on the surface of the steel pipe. Then, it is cleaned in the mixed aqueous solution tank of ammonium chloride and zinc chloride, and then sent to the hot dip plating tank. The steel tube substrate undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a compact structure. The alloy layer is integrated with the pure zinc layer and the steel tube substrate. Therefore, it has strong corrosion resistance.
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Product Name:
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Hot Dip Galvanized Square And Rectangular Tube
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Size:
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OD
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15x15mm-600x600mm / 20x30mm-600x800mm
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Wall Thickness
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0.7mm-20mm
SCH30,SCH40,STD,XS,SCH80,SCH160,XXS etc. |
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Length
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Less Than 12m
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Steel material
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Q195 → Grade B, SS330,SPHC, S185
Q215 → Grade C,CS Type B,SS330, SPHC Q235 → Grade D,SS400,S235JR,S235JO,S235J2 |
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Standard
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BS EN10296,BS EN10025,BS EN10297,BS6323, BSEN10219,BSEN10217,GB/T13793-1992,GB/T14291-2006, GB/T3091-1993,GB/T3092-1993,GB3640-88
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Usage
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Used For Structure, Accessorize And Construction
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Ends
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1) Plain 2) Beveled 3) Thread with Coupling or cap
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End protector
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1) Plastic pipe cap 2) Iron protector
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Surface Treatment
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1) Bared 2) Black Painted (varnish coating) 3) Galvanized
4) With Oiled 5) 3 PE, FBE, corrosion resistant coating |
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Technique
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Electronic Resistance Welded (ERW )
Electronic Fusion Welded (EFW) Double Submerged Arc Welded (DSAW) |
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Inspection
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With Hydraulic Testing, Eddy Current , Infrared Test
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Package
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1) Bundle 2) In Bulk 3) Bags 4) Clients' Requirements
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Delivery
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1) Container 2) Bulk carrier
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Others
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Fitting as screws and flange also can be supplied.
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Pre galvanized Hollow Section (Zinc coat:30-270g/m2)
Square and rectangular steel pipe
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Standard
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Side Length(mm)
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Common Tube(mm)
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Q215 Q235 |
DN
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Side Length
Tolerance |
Thickness
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Length
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Length
Tolerance |
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16
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16
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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19
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19
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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20
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20
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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20
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40
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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25
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25
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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25
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50
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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25
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75
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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30
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30
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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30
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40
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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30
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50
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+0.4, -0.5
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0.7-2.2
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3000-12000
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+20, -0
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32
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32
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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35
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35
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±0.5
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0.7-2.2
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3000-12000
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+20, -0
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37
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57
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+0.4, -0.5
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0.8-2.3
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3000-12000
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+20, -0
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37
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77
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±0.5
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0.8-2.3
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3000-12000
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+20, -0
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38
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38
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+0.4, -0.5
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0.8-2.3
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3000-12000
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+20, -0
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38
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75
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+0.5, -0.6
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1.0-2.3
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3000-12000
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+20, -0
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50
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75
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+0.5, -0.6
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1.0-2.3
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3000-12000
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+20, -0
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40
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40
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+0.4, -0.5
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0.8-2.3
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3000-12000
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+20, -0
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40
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60
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±0.5
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0.8-2.3
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3000-12000
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+20, -0
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50
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50
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±0.5
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1.0-2.3
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3000-12000
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+20, -0
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40
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80
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+0.5, -0.6
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1.0-2.3
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3000-12000
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+20, -0
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50
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75
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+0.5, -0.6
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1.0-2.3
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3000-12000
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+20, -0
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60
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60
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+0.5, -0.6
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1.0-2.3
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3000-12000
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+20, -0
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50
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100
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±0.7
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1.0-2.3
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3000-12000
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+20, -0
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50
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150
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±0.8
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1.0-2.3
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3000-12000
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+20, -0
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1.) Visual inspection
Visually inspect all galvanized parts, and their main surfaces should be smooth, free of drips, roughness and zinc thorns, no peeling, no missing plating, and no residual solvent slag, in parts that may affect the use or corrosion resistance of galvanized workpieces There should be no zinc nodules and zinc dust.
2.) Thickness inspection
When the size of the article allows, the thickness measurement of the coating shall not be carried out in the area less than 10mm from the edge, the flame cut surface or the corner. The coating thickness is defined by the minimum value of each local coating thickness measured.
Galvanized steel pipe application: Galvanized square pipe is mainly used for curtain wall, construction, machinery manufacturing, steel construction projects,
shipbuilding, solar power brackets, steel structure engineering, power engineering, power plants, agricultural and chemical
machinery, glass curtain walls, automobile chassis, airports, etc.
Q: Are you a manufacturer?
A: Yes , we are a manufacturer,Shandong hongcheng is a famous company that started earlier in China's steel industry, with annual sales of more than 10 million tons.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication.
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So wecan give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerrly do business and make friends with them, no matter where they come from.
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