Estamos comprometidos a brindar un servicio integral para productos de tubería de acero a clientes de todo el mundo.
Galvanized
pipes have a wide range of uses. n addition to oil and other low-pressure fluid
pipelines,it is also used as oil well pipes in the petroleum industry,
especially in offshore oil fields, oil heaters in chemical coking
equipment,coal distilation, and oil washing
converter
pipes, bridges, etc. Pipe pile, mining tunnel support frame with pipe, etc.
Developed countries in the world started to develop new pipes and continuously
banned galvanized pipes.
Zinc
Coating:
Pre-galvanized
steel pipe:60-150g/m2
hot
dipped galvanized steel pipe:200-460g/m2
Surface
treatment:Cold galvanizing. Hot-dipped galvanized
|
Regulation |
grid OD |
Wall thickness mm |
Minimum wall |
|
Nominal inner diameter |
inch mm |
|
Thick mm |
|
DN15 |
1/2 21.3 |
2.8 |
2.45 |
|
DN20 |
3/4 26.9 |
2.8 |
2.45 |
|
DN25 |
1 33.7 |
3.2 |
2.8 |
|
DN32 |
1.25 42.4 |
3.5 |
3.06 |
|
DN40 |
1.5 48.3 |
3.5 |
3.06 |
|
DN50 |
2 60.3 |
3.8 |
3.325 |
|
DN65 |
2.5 76.1 |
4 |
3.5 |
|
DN80 |
3 88.9 |
4 |
|
|
DN100 |
4 114.3 |
4 |
|
|
DN125 |
5 140 |
4.5 |
|
|
DN150 |
6 168.3 |
4.5 |
|
|
DN200 |
8 219.1 |
6 (welded pipe) |
|
|
DN200 |
8 219.1 |
6.5 hot-dip galvanizing |
|
ASTM Standards
1.ASTM A123/A123M: Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products Single pieces of steel or fabrications with different types of steel products
2.ASTM A153/A153M: Standard Specification for Zinc Coating (Hot-Dip) on Iron and Hardware Fasteners and small products that are centrifuged after galvanizing to remove excess zinc
3.ASTM A767/A767M: Standard Specification for Zinc-Coated (Galvanized) Steel Bars for Concrete Reinforcement Reinforcing steel or rebar
Other Galvanizing Standards
1.CSA G164: Hot-Dip Galvanizing of Irregularly Shaped Article (Note: The scope of this standard was revised in 2018 to include products intended or primarily for use in electrical and communication systems only.)
2.ISO 1461: Hot-Dip Galvanized Coatings on Fabricated Iron and Steel Assemblies Specifications and Test Methods
3.AASHTO M111 (ASTM A123): Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
AASHTO M232 (ASTM A153): Zinc Coating (Hot-Dip) on Iron and Steel Hardware
