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Galvanized Erw Round Carbon Steel Tube Od 21mm

Minimum Order Quantity : 8Ton Price : USD1000-1100 Per Ton
Packaging Details : Woven bag or wooden case Delivery Time : 20-30
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 500000 Ton per years
Place of Origin: China Brand Name: Torich
Certification: ISO9001

Detail Information

Alloy Or Not: Non-Alloy OD: 21 - 271 Mm
WT: 0.8 - 12.75 Mm Length: 12M, 6m, 6.4M, 1-12mor As Needed
Technique: ERW Surface Treatment: Galvanized
High Light:

od 21mm round carbon steel tube


erw round carbon steel tube


od 21mm galvanized carbon steel tube

Product Description

Round Pipe Tube Carbon Steel Tube Gi Galvanized Steel Pipe


Hot dip galvanized pipe:

It is to make the molten metal react with the iron matrix to produce an alloy layer, so as to combine the matrix

and the coating. Hot dip galvanizing is to pickle the steel pipe first. In order to remove iron oxide on the surface

of the steel pipe, after pickling, it is cleaned in ammonium chloride or zinc chloride aqueous solution or ammonium

chloride and zinc chloride mixed aqueous solution tank, and then sent to the hot dip galvanizing tank. Hot dip galvanizing

has the advantages of uniform coating, strong adhesion and long service life. Most of the processes in the North adopt

the process of directly rolling pipe with galvanized strip for zinc supplement.


Production process:
Black parts inspection → hanging → degreasing → rinsing → pickling → cleaning → dipping plating aid

→ hot air drying → hot dip galvanizing → internal and external blowing → cooling → passivation and rinsing

→ unloading → inspection and finishing → typing identification → packaging, warehousing and transportation.

Galvanized strip → uncoiling → stretching → rolling pipe → welding → scarring → passivation and rinsing

→ zinc supplement → setting → typing identification → cutting → packaging → drying → weighing.

JIS G3302 / ASTM A653M / EN10327 / DIN17162
Place of Origin
Brand Name
Steel Pipe
Q195-Q345, A53-A369, Q235, Q345, Q195, A53(A,B),
0.8 - 12.75 mm
Color weight
4-6 tons
Standard seaworthy export packing: waterproof paper+steel trip
packed+wooden case seaworthy package
Within 15-30 days
1.Galvanized steel is available in a variety of forms, such as galvanized pipes and galvanized wire. It is used everywhere.
2.Galvanized steel frames are used to build houses.
3.Car parts are made out of galvanized steel, for example, the body of trucks and buses.
4.Galvanized metal has found its way into several household appliances such as washing machines, air conditioning housings, hair dryers, etc.
5.It is used in high tension electrical towers, protective gears, highway signs etc.
6.It is also used to make wrought iron gates and other items.
7.Also used to make metal pails.


Galvanized Erw Round Carbon Steel Tube Od 21mm 0


Galvanized Erw Round Carbon Steel Tube Od 21mm 1

Galvanized Erw Round Carbon Steel Tube Od 21mm 2

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