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Hot dipped galvanized steel pipe

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What is Hot Dipped Galcanized Pipe

The hot dipped galvanized pipe is used to make the molten metal react with the iron matrix to produce the alloy layer, so that the matrix and the coating are combined. The hot dipped galvanized steel pipes to pickling, in order to remove iron oxide on the surface of the steel tube after acid cleaning, by ammonium chloride or zinc chloride or ammonium chloride and zinc chloride mixed aqueous solution tank cleaning, and then sent to the hot dip plating tank. Hot galvanizing has the advantages of uniform coating, strong adhesion and long service life.Complex physical and chemical reactions occur between the steel tube substrate and the molten bath, forming a tightly corrosion resistant zinc-ferroalloy layer.The alloy layer is integrated with pure zinc layer and steel tube substrate.Therefore, it has strong corrosion resistance.

Hot dip galvanized pipe specification

Hot dipped galvanized pipe made by black pipes dipped into zinc pool for galvanized.

Zinc coating: 275 – 600g /m2


Wall thickness:0.5mm-12mm

Length:2m-5.8m/6m/12m or as your request

Zinc Coating: Hot dip galvanized steel pipe: 200g/m2-400g/m2 

Steel Grade: Q195-Q345, S235JR, S275JR, S355JR, S355J2H, STK400/500.

Standard: ASTMA53,BS1387-85,GB/T3091-08,DIN2440,JIS-G3444,EN10255

Surface: hot dipped galvanized

Packing: Two tags on each bundle, Wrapped in waterproof paper, with several steel strips

Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, 

Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test. Third party inspection:SGS, BV, Lloyds etc.

Hot Dip Galvanized Pipe Process

Hot dip galvanized pipe has the following production steps:

Black piece of check - hanging - skim - rinse - acid - cleaning - dipping plating aid to hot air drying, hot dip galvanized to cooling, passivation and rinse to unloading, inspection, trimming and packaging warehousing and transportation.

high quality product of hot dipped galvanized steel pipe

Production Equipment:

advanced equipment of hot dipped galvanized steel pipe

Products Feature

Our Customers prefer our Hot dipped Galvanized Steel Pipe because of the following reasons:

  • Smooth surfaces: Our galvanized steel pipe distributor ensure that the finished products are produced through a process that continuously ensures for smooth-surface, uniform wall pipe for superior and easy coatability and flow characteristics thereby ensuring the fluids are well transported through the pipes.

  • Stronger, lighter walls: Galvanized Steel pipe higher strength, lighter gauge steel strip is fused by high frequency electric resistance welders into high tensile steel pipe that meets tolerances and strength  of a high quality carbon galvanized steel pipe specifications.

  • Weight of galvanized layer: according to requirements of the buyer, the weight of galvanized steel pipe can be measured as zinc layer, and its average value should not be less than 500g/ m2

Packing1.Big OD:in bulk
2.Small OD:packed by steel strips
3.woven cloth with 7 slats
4.according to the requirements of customers
UsageMechanical&manufacture, Steel strcuture,
Shipbuilding, Bridging, Automobile chassis
Main marketMiddle East,Africa, Asia,Australia and some European countries.
Productivity3000 Metric Tons per Month
Remark1. Payment terms: T/T, L/C
2. Terms of trade: FOB, CFR, CIF, DDP, EXW
3. Minimum order: 10 tons
4. Lead time :on or before 20 days .


packaging and shipment of hot dipped galvanized steel pipe


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1、We have our own factory to produce our products.

2、We have a number of excellent line service team.

3、We offer a full range of quality assurance services.


Q: May I have some samples before bulk order?

A: Yes, you can. We can arrange the shipment according to your requirements.

Q: Do you have quality control?

A: Sure. We have the most advanced testing equipment for very strict quality control. 

Q:How about the delivery?

A: By containers on ship or railway wagon ,and bulk ship . Safe and cost effective way of delivery . 

Q:What about the lead time for mass production?

A:Honestly, it depends on the order quantity and the season you place the order.

Contact us:

Skype: paulpaul120481

Mobile: +86 18622088833(whatapp,line)

Email: info@sino-sources.com