Cold plated/electrically galvanized pipe
Cold galvanized steel pipe, also known as electrogalvanized steel pipe, is a method of laying a layer of metal zinc on the conductive body using the principle of electrolysis. The zinc layer of cold galvanized steel pipe is thin, simply attached to the steel pipe matrix, easy to fall off, so its corrosion resistance is poor.

Product details

The difference between cold galvanizing and hot galvanizing:

Cold galvanized coatings are mainly anticorrosive by electrochemical principles. Hot dip galvanizing is a method of dipping steel members into molten zinc solution to obtain a metal coating. The corrosion resistance of hot-dip galvanizing is higher than that of cold galvanizing. And hot galvanizing will not rust in a few years, and cold galvanizing will rust in three months.

The zinc layer of hot dip galvanizing itself is relatively thick, with a thickness of more than 10um, although the surface is bright, but rough, there will be zinc flowers. The zinc layer of cold galvanized is very thin, only 3-5um thickness, although the surface is smooth, it will have gray and dirty performance, good processing performance and insufficient corrosion resistance.


Production process:

Product Name

Cold plated/electrically galvanized pipe

Standard

EN/DIN/JIS/ASTM/BS/ASME/AISI etc.

Material type

Q195 Q235A A35 A53 A106 S235 S355 Dx51d+Z Dx52d+Z Dx53d+Z,etc.

Outer Diameter

Seamless: 1/4"-36"

Welding: 21.3mm-3620mm

Round Tube: 1/2"-10"

Square Tube/Rectangular Tube: 15x15mm-400x600mm

Wall Thickness

Seamless: 1.25mm-50mm

Welding: 1.65mm-65mm

Wall Thickness

1MM~12MM as the requirement

Outer Diameter

21.3MM~219.1MM

Length

5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques

Zinc Coating

30g-275g

Technique

Seamless / ERW(GALVANIZED)

Packing

Bundle, or with all kinds of colors PVC or as your requirements

Certificate

CE, tisi, KS, JIS, GS, ISO9001

Delivery Time

within 7 days

Other Services

Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.


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Galvanized pipe size specification table


Specification

Galvanized pipe measuring 6 meters

Welded pipe measuring 6 meters

Number

Nominal inside diameter

Inches

OD/mm

WT/mm

Minimum wall thickness

Weight per meter/kg

Weight per stick/kg

Weight per meter/kg

Weight per stick/kg

1

DN15 galvanized pipe

1/2

21.3

2.8

2.45

1. 35

8.14

1.28

7.68

2

DN20 galvanized pipe

3/4

26.9

2.8

2.45

1. 76

10. 56

1. 66

9.96

3

DN25 galvanized pipe

1.0

33.7

3.2

2.8

2.554

15.32

2.41

14.46

4

DN32 beryllium zinc tube

1.25

42.4

3.5

3.06

3.56

21.36

3.36

20.16

5

DN40 galvanized pipe

1.5

48.3

3.5

3.06

4.1

24.6

3.87

23.22

6

DN50 plated front tube

2.0

60.3

3.8

3.325

5.607

33.64

5.29

31.74

7

DN65 galvanized pipe

2.5

76.1

4.0 

3.5

7.536

45.21

7.11

42.66

8

DN80 galvanized pipe

3.0

88.9

4.0 

-

8.88

53.28

8.38

50.28

9

DN100 galvanized pipe

4.0

114.3

4.0 

-

11.53

69.18

10.88

65.28

10

DN125 galvanized pipe

5.0

140

4.5

-

15.942

98.65

15.04

90.24

11

DN150 galvanized pipe

6.0

168.3

4.5

-

19.27

115.62

18.18

109.08

12

DN200 galvanized pipe

8.0

219.1

6.0(Welded pipe)

-

-

-

31.53

189.18

13

DN200 galvanized pipe

8.0

219.1

6.5(Hot dip galvanizing)

-

36.12

216.7

-

-


Scope of Application

Galvanizing products are widely used in industry, agriculture, animal husbandry and fishery, energy, transportation, chemical industry, light industry, home appliances, construction, communications, national defense and other fields.

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WORKSHOP EQUIPMENT

The company mainly produces hot rolled steel plate, cold rolled steel plate, carbon steel coil, carbon steel pipe, API pipe, structural steel, steel bar and other products. The company has obtained ISO9001 quality system certification and European CE certification, and provides MTC quality certification according to EN10204.3.1

Companies adhering to the "integrity, quality, win-win" spirit of enterprise, in the years of pioneering and enterprising, never forget the original aspiration, accumulated strength, with wisdom and sweat to lead the development of iron and steel industry.

The annual production capacity of cold rolled steel plate production line is 600,000 tons, and the production specification is 0.12-1.2mm*750-1250mm. The production line adopts advanced full hydraulic on the road, flexible and stable control, combined with thickness gauge to achieve automatic control of AGC plate thickness, so as to ensure product quality.

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