Round Hot Dip Galvanized Steel Pipe

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Round Hot Dip Galvanized Steel Pipe

Galvanized round pipe is suitable for most indoor and outdoor engineering and industrial applications. Hot dipped galvanized steel pipe is one of the most widely used metal anti-corrosion methods. It applies a thin coating of zinc to the thicker round tub

Product introduction


The hot dipped galvanized steel pipe is to make the molten metal react with the iron matrix to produce an alloy layer, so that the round tube base and the coating are combined. Hot galvanized pipe has the advantages of uniform coating, strong adhesion and long service life.

The galvanized round pipe is galvanized on the round tube, so its application range has been greatly expanded compared with the square tube. Mainly used in curtain wall, construction, machinery manufacturing, steel structure engineering, shipbuilding, solar power generation support, steel structure engineering, electric power engineering, power plant, agricultural chemical machinery, glass curtain wall, automobile chassis, airport, etc.

Production Process

Galvanized round pipe has the following production steps:

  • examine

  • Suspension

  • degrease

  • rinsing

  • pickling

  • to clean

  • Dip Flux

  • hot air drying

  • hot dip galvanized

  • cool down

  • Passivation and rinsing

  • unloading

  • inspection, repair

  • Packing, warehousing, transportation

Purchasing Information

Product Name

Round Hot Dip Galvanized Steel Pipe

Grade Q195, Q235
SGCC, SGCH, SGC340, SGC400, SGC440, SGC490, SGC570
SGHC, SGH340, SGH400, SGH440, SGH490, SGH540
DX51D, DX52D, DX53D, DX54D
S220GD, S250GD, S280GD, S320GD, S350GD, S400GD, S500GD, S550GD
Standard: ISO, JIS, ASTM, AS EN
Zinc coated: 40 - 300g/m2
Fabrication Plain ends, cutting, threading, etc.
Surface treatment Transparent oil,anti-rust oil, According to clients requirement
Thickness 1.2 - 12mm
Supply Ability 40000MT/month
Packaging Export standard, seaworthy
Substrate Cold rolled, Hot rolled
OD 20 - 508mm
Tolerance Thickness: ±0.01mm
Trade Term FOB, CFR, CIF
Payment terms T/T, L/C at sight, West Union, D/P, D/A, Paypal
Delivery time 10-15 days after confirmed order
Loading port Tianjin port
Container size 20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High)
40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High)
*If you do not find what you are looking for, please call us now. If you have found it, we are happy to answer any questions or concerns you may have about galvanized steel grades and assist you through the purchasing process.

◆ Order Process

The order process of our Hanhuang Metal galvanized steel pipe products:

  1. Receive Inquiry(drawing,temper,etc.)

  2. Feasibility study & quotation

  3. Offer is accepted by customer

  4. Comfirmation on order details

  5. Signing Pl

  6. Receive deposit

  7. Design&make the die for extrusion

  8. Mold test,make samples

  9. Sample approval,mass production

  10. Receive balance

  11. Deiivery


Q:Can you send samples?

A:Sample can be for free,freight cost collect. 

Q:What product information do I need to provide? 

A:Steel grade/thickness/width/quantity,these will decide the price.

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,CE,SGS,BV and other certifications.

Q:How about the delivery time? 

A:Regularly the delivery time around 10-15 days,customized one will inform the delivery time ahead.

Q:Does the product have quality inspection before loading? 

A:All the products are strictly tested before packaging,also can inspect by third party inspection.

Q:How to pack the products?

A:Standard export package with waterproof film and wooden pallet.It can effectively protect products from corrosion.

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