Quick Details
- Product Name:Galvanized Steel Pipe
- Processing Time:30days
- Port:Tianjin Ports and other ports in China
- Supply Ability: 80000 Tons Per Month
- Alloy Or Not:NOT
- Application:Industry, Chemical, petrochemical, marine
- Certification:ISO9001,API 5L
- Grade Group:Grade A
- Place of Origin:China
- Secondary Or Not:NOT
- Section Shape:Round
- Special Pipe:API
- Standard:API 5L,ASTM106
- Surface Treatment:Bare,Lightly Oiling,Black/Red/Yellow Painting,Zinc/Anti-corrosive Coating
- Technique:Hot Rolled
- Thickness:CUSTOMIZED
- Brand Name:customized
Galvanized Steel Pipe,Hot dipped Galvanized Steel Pipe,Galvanizing Steel
Tube
Galvanized steel pipes are usually coated with zinc on the outside of low carbon steel. The galvanized layer is usually 20 um thick. The melting point of zinc is
419 C and the boiling point is about 908 C. In welding, zinc melts into liquid and floats on the surface of the molten pool or at the root of the weld. Zinc has a high solid solubility in iron.
Zinc liquid will etch weld metal along grain boundary. Low melting point zinc will form "liquid metal embrittlement". At the same time, zinc and iron can form intermetallic brittle compounds.
These brittle phases reduce the plasticity of weld metal and cause cracks under tensile stress. If fillet welds, especially T-joints, are most prone to penetrating cracks
Product specification:
Product name
Hot dipped Galvanized steel Pipe
Technique
Hot rolled
Standard
ASME B36.10, JIS3444,GB/T3091,BS 1387,BS1139,DIN2444
Shape
Round
Specification
OD: 21.3mm~660mm
WT: 1mm~17.5mm
Length:5.8
Mtr/11.8Mtr or Fixed Length
Surface treatment
Bared,Galvanized,Oiled,Color Paint,3PE;Or other Anti-corrosive treatment
Pipe type
Welded steel pipe(round/square/rectangular)
item
Specification
OD(mm)
W.T
Minimum W.T
6M Fixed length
O.D.
Inch
Rice weight
root weight
1
DN15
1/2
21.3
2.8
2.45
1.36
8.14
2
DN20
3/4
26.9
2.8
2.45
1.76
10.56
3
DN32
1
33.7
3.2
2.8
2.554
15.32
4
DN40
1.25
42.4
3.5
3.06
3.56
21.36
5
DN50
1.5
48.3
3.5
3.06
4.1
24.6
6
DN65
2
60.3
3.8
3.325
5.607
33.64
7
DN80
2.5
76.1
4
3.5
7.536
45.21
8
DN100
3
88.9
4
8.88
53.28
9
DN125
4
114.3
4
11.53
69.18
10
DN150
5
140
4.5
15.942
98.65
11
DN150
6
168.3
4.5
19.27
115.62
12
DN200
8
219.1
6
13
DN200
8
219.1
6.5
36.12
216.7
Product Photo:
Processing:
1.Uncoiling--2 Leveling--3 End cutting--4 End shearing weldling--5 Super coil accumulator --6. Edge cutting--7 Ultrasonic detection--8 Forming--9 Electric induction
welding--10.Ultrasonic detection for weld seam--11. Medium frequency heat treatment--12, Air cooling--13. Water cooling --14Sizing--15 Flying cutting--16 Flush-out-- 17. Cropping--18
Flattening,testing--19, Straightening-- 20. End facing and bevelling--21 Hydrodynamic testing--22 Ultrasonic detection for weld seam- 23, Ultrasonic detection for pipe end --24 Visual and
dimensions inspection--25.Weighting and measuring
Packing & delivery:
Packaging Details
1.Bundling with steel strip.
2.
Galvanized and
packing with plastic wrap.
3. In bulk or
containers.
4. Packing in wooden case.
5. As customer's requirement.
