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4 inch galvanized mild steel pipe

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SinoSources Galvanized mild steel pipe

Galvanized mild steel pipe is madeof rust corrsion measures are not taken welding(welding furnaces, welding pipe, seamless steel pipe or other metal clarinet, a certain process of hot-dip galvanizing, zinc coating to make it fit the outer coating, played long steel does not rust after processing. Galvanized mild steel pipe for molten metal and iron matrix after a certain reaction with a layer of alloy layer, so that presents the effective combination between substrate and coating. Galvanized coating has a number of characteristics that make it a well-suited corrosion protective coating for iron and steel products in most environments. Zinc, which is anodic to iron and steel, will preferentially corrode and protect the iron or steel against rusting when the coating is damaged.

Galvanized mild steel pipe specifications


API, ASTM, BS, DIN, GB, JIS, API 5CT, API 5DP, API 5L, ANSI A182-2001, ASTM A213-2001, ASTM A789-2001, BS 1139, BS EN10296, DIN 1626, DIN EN 10305, SEW680, GB 5310-1995, GB/T 3091-2001, JIS C8305-1999


10#-45#, 10Cr9Mo1VNb, 10MoWVNb, API J55-API P110, Cr-Mo alloy, STBA20-STBA26, 10#, 45#, 10Cr9Mo1VNb, 10MoWVNb, API J55, 10CrMo910, Cr9Mo, STBA20


0.3 - 19 mm

Section Shape:


Outer Diameter:

16 - 254 mm

Place of Origin:

Tianjin, China (Mainland)

Secondary Or Not:



Structure Pipe


Cold Drawn



Surface Treatment:


Special Pipe:

Thick Wall Pipe

Alloy Or Not:


Product name:

High quality!!greenhouse pre-galvanized steel pipe!


natural color

Galvanized type:

Hot dip galvanizing

Welded or Seamless:

As your requirements


Ultrasonic test


Galvanized steel pipe




Used For Structure, Accessorize And Construction


in bundle



high quality product of 4 inch galvanized mild steel pipe

Products processing:

Finished pickling – washing – plating – drying – hanging plating – cooling – medicine – cleaning – grinding – finish.

In the processing of hot galvanizing, it will formed a film of zinc-steel alloy layer first, above it is pure zinc layer. When the air corroded the zinc layer, it will form a layer of ZnO, Zn(OH)2 and basic zinc carbonate protection film. Which have the effect of anti air corrosion. When this film was destroyed, a new one will form. When the zinc layer destroyed heavily, zinc start up electric chemical protection. Zinc as the first element dissolved. It’s obviously that hot galvanized  steel have better anti corrosive performances than cold galvanizing pipe.

Production Equipment:

Advance equipment of 4 inch galvanized mild steel pipe

Products Feature

Our Customers prefer our Schedule 40 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.

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 shipping of 4 inch galvanized mild steel pipe


Certificate of sino


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 (whatsapp,line)

Email: info@sino-sources.com