We are committed to providing one-stop service for steel pipe products to customers around the world.
Galvanized steel pipes are commonly used in a wide range of applications, including plumbing, heating and cooling systems, electrical conduit, and structural support.
Zinc Coating:
Pre-galvanized steel pipe:60-150g/m2
hot dipped galvanized steel pipe:200-460g/m2
Surface treatment:Cold galvanizing. Hot-dipped galvanized
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
|
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 |
|
|
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
