Hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the Steel Pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in the tank of ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the in the hot dip bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip Galvanized Steel Pipe 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 pipe substrate, so it has strong corrosion resistance.
Galvanized pipes are widely used. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes and oil pipes in the petroleum industry, especially in offshore oil fields, and oil heaters and condensers in chemical coking equipment. Pipes for coolers, coal distillation washing oil exchangers, and pipes for trestle piles, supporting frames for mine tunnels, etc.
| Product Name | Hot-dip Galvanized Round Steel Pipe |
| Standard | ASTM |
| Material | iron,black/mild/carbon steel,steel alloy |
| Technology | Erw,Hot Rolled ,Cold Rolled,Cold Drawn,Hot Expended |
| Tolerance | Control with in the standard, OD:+/-1%, WT:+/-5% |
| Chemical Composition | C:0.17～0.23%
Si:0.17～0.37%
Mn:0.35～0.65%
Cr≤:0.25%
Ni≤:0.30%
Cu≤:0.25%
Fe:98.59～97.5% |
| Mechanical Property | σb/MPa≥:410
σs/MPa≥:245 δ5(%)≥:25
ψ(%)≥:55 |
| Application | Construction,machine structure pipe, Agriculture equipment pipe, Water and gas pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniture tube, Low pressure fluid tube, Oil pipe, etc |
| Payment Terms | 1.FOB 30%T/T,70% Before shipment
2.CIF 30% Pre-payment , Balance must be paid before shipment
3.Irrevocable 100% L/C at sight |
| Third Party Inspection | SGS ,BV, MTC |
| Advantages | 1.Short delivery time 2.Quality assurance 3.Competitive price, 4.Free Sample |
| Delivery Time | Within 25 days after receipt of advance payment |
Q: Are you a manufacturer?
A: Yes, we are quality galvanized steel pipe manufacturer, we have our own factory, located in Shandong, China.
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 can accept BV, SGS third inspection .
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-35 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 we can 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 sincerely do business and make friends with them, no matter where they come from.
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