Hot Galvanized for Thin Wall Steel Pipe

Hot Galvanized for Thin Wall Steel Pipe

Steel grade: Q215A; Q215B; Q235A; Q235B
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Product Details

Hot Galvanized For Thin Wall Steel Pipe

Steel grade: Q215A; Q215B; Q235A; Q235B

     Galvanized structural pipe is typically used for indoor projects to transport liquids, such as water, but it can also be used for certain outdoor applications, such as protective ballards. The protective quality of galvanized pipe is created through a hot-dipping process that completely coats the steel in zinc. The zinc then provides a sacrificial layer that will rust away before any of the steel is affected.

    Hot-dip galvanizing (HDG), as referenced is the process of dipping fabricated steel into a kettle or vat of molten zinc. While the steel is in the kettle, the iron metallurgically reacts with the molten zinc to form a tightly-bonded alloy coating that provides superior corrosion protection to the steel.

Hot-dip galvanizing is a form of galvanization. It is the process of coating iron, steel or aluminum with a thin zinc layer, by passing the metal through a molten bath of zinc at a temperature of around 860 °F (460 °C).

Chemical composition and Mechanical property

Elements material

Chemical Composition

Mechanical Property

C

Mn

S

P

Si

Yield

Tensile

eloongation

%

%

%

%

%

Mpa

Mpa

%

Q195

0.16-0.12

0.25-0.25

<0.5

<0.045

<0.3

>195

315-430

32-33

Q215

0.09-0.15

0.25-0.55

<0.5

<0.045

<0.3

>215

335-450

26-31

Q235

0.12-0.2

0.3-0.7

<0.5

<0.045

<0.3

>235

375-500

24-26

Q345

<0.2

1-1.6

<0.5

<0.045

<0.3

>345

470-630

21-22

Out diameter and wall Thickness 

Norminal Size(inch)

Outside Diameter

Wall Thickness(mm)

Norminal Size(inch)

Outside Diameter(mm)

Wall Thickness(mm)

Norminal Size(inch)

Outside Diameter

Wall Thickness(mm)

1/2”

mm

0.8-3.0

2”

60.3

1.0-4.5

6”

168.3

1.5-10

3/4”

21.3

0.8-3.0

2 1/2”

73 or 76

1.0-4.5

8”

219

1.5-10

1”

26.7

0.8-4.0

3”

88.9

1.0-4.5

10”

273

1.5-15

1 1/4”

42.2

0.8-4.0

4”

114.3

1.0-6.0

12”

323.8

1.5-15

1 1/2”

48.3

0.8-4.5

5”

141.3

1.0-6.0

...

...

...

 Application

A steel pipe having a ratio of the outer diameter of the steel pipe to the wall thickness of more than 20 is referred to as a thin-walled steel pipe. Thin-walled steel pipe thin-walled steel pipes are all cold drawn. Among them, carbon steel, low alloy steel, alloy steel thin wall pipe is suitable for general structure and mechanical structural parts; thin wall fluid steel pipe is used for conveying general fluid; stainless steel thin wall pipe is used for chemical, petroleum, light industry, food, mechanical instrument, etc. Industrial heat-resistant containers, conveying pipes and mechanical structural parts.

Ends

1) Plain   2) Beveled   3) Thread with Coupling or cap

End protector

1) Plastic pipe cap   2) Iron protector

Surface Treatment

1) Bared   2) Painted   3) Galvanized   4) With Oiled  5) 3 PE, FBE, corrosion resistant coating

Technique

Electronic Resistance Welded (ERW )   Electronic Fusion Welded (EFW)

Double Submerged Arc Welded (DSAW)

Type

Paint on surface   Welded Line Type   Longitudinal  Inspection  With Hydraulic Testing, Eddy Current , Infrared Test

Package

1. Bundled with narrow steel strips;

2. Your Logo can be printed on the pipes;
3. wrapped with waterproof colth;
4. According to customers' requirement.

Delivery

1) Container   2) Bulk carrier

   If you require further information or you do not see what yo need in our web,please do not hesitate to contact us. Our customer service specialists will be happy to help you. info@jiade-group.com

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