Full Hard 6m Square Rectangular Galvanized Steel Pipe DX51D
Galvanized steel pipe is an alloy layer formed by the reaction between molten metal and iron matrix, which combines the matrix and the coating. Hot-dip galvanizing is a process of pickling steel pipes. In order to remove the iron oxide on the surface of steel pipes, after pickling, the pipes are cleaned through ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank, and then sent into the hot-dip galvanizing tank.Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. Complex physical and chemical reactions occur between the steel tube matrix and the molten plating solution, resulting in a zinc-iron alloy layer with a close corrosion resistance structure. The alloy layer is integrated with pure zinc layer and steel tube matrix. Therefore, it has strong corrosion resistance. Galvanized steel pipe are widely used, in addition to pipelines for general low-pressure fluids such as water, gas, oil, etc., and also used as oil well pipes and oil pipes in the petroleum industry, especially in offshore oil fields, and oil heaters and condensation of chemical coking equipment. Cooler, coal distillate oil exchanger pipe, and trestle pipe pile, support pipe for mine tunnel, etc.
Product Description
| Product Name | Hot Dip Galvanized Steel Pipe/Tube |
| Standard | ASTM, BS, GB, DIN, JIS, EN, etc. |
| Shape | Round/Square/Rectangular |
| Steel Grades | Q235A; Q235B, etc. |
| Wall Thickness | 0.50-6.0 mm |
| Zinc Coating | 60 g/m2-700 g/m2 |
| Length | 2m-5.8m/6m/12m or customized |
| Proportionality Coefficient (c) | 1.064, 1.051, 1.045, 1.040, 1.036, 1.034, 1.032, 1.028 |








Round Galvanized Steel Pipe
| Inch | OD(Outer diameter) | ID(Inner diameter) |
| 1/2” | 21mm |
15mm |
| 3/4” | 26mm | 20mm |
| 1” | 33mm | 25mm |
| 1-1/4” | 42mm | 32mm |
| 1-1/2” | 48mm | 40mm |
| 2” | 60mm | 50mm |
| 2-1/2 | 76mm | 65mm |
| 3” | 89mm | 80mm |
| 4” | 114mm | 100mm |
| 5” | 140mm | 125mm |
| 6” | 165mm | 150mm |
| 8” | 219mm | 200mm |

Main Features of Galvanized Steel
Cheap: The cost of hot-dip galvanizing is lower than that of other coatings.
Reliable: The zinc coating is metallurgically bonded to the steel and forms part of the steel surface,so the coating is more
durable.
Strong toughness: The galvanized steel sheet layer forms a special metallurgical structure that can withstand mechanical damage during transportation and use.
Comprehensive protection: Every part of the plated piece can be galvanized, and is fully protected even in depressions,sharp corners,and hidden places.
Save time and energy: Galvanizing process is faster than other coating methods.

A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q:About product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.
Q:What are the certifications for your products?
A:We have ISO 9001, SGS, EWC and other certifications.
Q:How long does your delivery time take?
A:In general, our delivery time is within 30-45 days, and may be delayed if the demand is extremely large or special circumstances
occur.
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory. However, some of the plants are not open to the public.
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.
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