Galvanized Welded Pipes For Construction Projects

Short Description:

In order to improve the corrosion resistance of steel pipes, the general steel pipes are galvanized. Galvanized steel pipes are hot-dip galvanized and electro-galvanized. Hot-dip galvanized galvanized layer is thick, electro-galvanized cost is low, and the surface is not smooth.

Product Detail

Product Tags

Galvanized steel pipe is divided into cold galvanized steel pipe and hot galvanized steel pipe, cold galvanized steel pipe has been banned, the latter is also advocated by the state can be used temporarily. In the sixties and seventies, developed countries began to develop new types of pipes, and one by one, galvanized pipes were banned. The Ministry of Construction of China and four other ministries and commissions have also issued a document clearly prohibiting the use of galvanized pipes as water supply pipes from 2000 onwards. Hot-dip galvanized steel pipes are widely used in fire fighting, electricity and highways.

Product Applications

Hot-dip galvanized steel pipes are widely used in the manufacturing industries of construction, machinery, coal mining, chemical industry, electric power, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery, shed construction, etc.

Galvanized steel pipe has a welded steel pipe with a hot dip or electro galvanized layer on the surface. Galvanization can increase the corrosion resistance of steel pipes and prolong the service life. Galvanized steel pipe has a wide range of uses, in addition to being used as a pipeline for general low pressure fluids such as water, gas and oil, it is also used as an oil well pipe and oil pipeline in the petroleum industry, especially in the marine oil fields, as an oil heater, condensation cooler and coal distillation and oil washing exchanger pipe for chemical coking equipment, and as a support frame pipe for trestle piles and mining pits, etc.

Product Details

Material A53 B, St37-2, St52-4,
Wall thickness 1mm~20mm
Outer Diameter 21.3MM~1620MM
Physical Property API 5L, ASTM A53, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M, BS 1387
Grade A53 B , ST37-ST52
Surface Treatment 1. Galvanized
2. Black
3. Transparent oil,anti-rust oil
Pipe Ends Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
Certificate API 5L,FM,UL, CE,
Application Suitable for fire piping system,air,gas,oil and so on
Buyer's drawing or designs are available
Package Bulk
Delivery Details 30 days


Regular Sizes of Galvanized Steel Pipe
DN NB OD (mm) WT (mm) Pcs/Bundle Regular Length: 5.7m, 5.8m, 6.0m, 6.4.Besides, we can make to order for you according to your requested length.
15 1/2" 19mm-21.3mm 1.5mm-3.0mm 217
20 3/4" 25mm-26.9mm 1.5mm-3.0mm 169
25 1" 32mm-33.7mm 1.5mm-3.0mm 127
32 1.1/4" 40mm-42.4mm 1.5mm-4.0mm 91
40 1.1/2" 47mm-48.3mm 1.5mm-4.0mm 91
50 2" 58mm-60.3mm 1.5mm-4.0mm 61
65 2.1/2" 73mm-76.1mm 1.5mm-4.0mm 37
80 3" 87mm-88.9mm 1.5mm-9.5mm 37
100 4" 113mm-114.3mm 2.0mm-9.5mm 19
125 5" 140mm-141.3mm 3.0mm-9.5mm 19
150 6" 165mm-168.3mm 3.0mm-12.0mm 19
200 8" 219.1 3.2mm-12.0mm 7
250 10" 273.0 3.2mm-12.0mm 5 or 1
300 12" 323.9mm-325mm 6.0mm-15mm 3 or 1
350 14" 355mm-355.6mm 8.0mm-15mm 1
400 16" 406.4mm 8.0mm-20mm 1
450 18" 457mm 9.0mm-23mm 1
500 20" 508mm 9.0mm-23mm 1
550 22" 558.8mm 9.0mm-23mm 1
600 24" 609.6mm 9.0mm-23mm 1

Product Display


The often said galvanized pipe, the use of galvanized pipe gas, heating with the kind of iron pipe is also galvanized pipe, galvanized pipe as a water pipe, after a few years of use, the pipe produces a lot of rust scale, the outflow of yellow water not only pollute the sanitary ware, and interspersed with unsmooth inner wall breeding bacteria, rust caused by heavy metal content in the water is too high, seriously endangering human health.

Common Specifications

Nominal caliber

Outer diameter

wall thickness

weight factor




Plain steel pipe

thickened steel pipe

















1.Why you choose us ?

Our company has been in for 12 years. We control the quality of the products very strictly, there are special people for the quality.

If you got lower price from other supplier ,we will pay back twice to customers about the higher price.

2.How long is your delivery time?

According to the quantity.Generally within 2-7 days if in stock.And 15-20 days if not in stock.

3.What is your payment terms?

A: By T/T 30% in advance ,and 70% before delivery.

B:100% L/C at sight.

C:By T/T 30% in advance,and 70% L/C at sight.

4.Do you provide samples ? Is it free?

Yes, we offer the sample for free but do not pay for the cost of freight.

5.What if the customer is not satisfied?

If there is a problem with the product,we take full responsibility.

If there is a problem in the transportation process,we will help you to solve it.

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