Galvanized steel pipe usually means the hot-dip galvanized steel pipe. To make the hot-dip galvanizing pipe, firstly do the pickling in order to remove the iron oxide on the surface of the steel pipe, then clean the pipes in the ammonium chloride or zinc chloride aqueous solution, and then put the pipes into Hot-dip galvanized bath, the galvanized layer can improve the corrosion resistance of steel pipe so as to extend the service life. Galvanized steel pipe is not only widely used in the field of water, gas, oil and other general low-pressure fluid pipeline, but also in chemical coking equipment such as oil heater, condensation Cooler, and the bridge piles such as mine tunnel support tube and so on.
Galvanized steel pipe usually means the hot-dip galvanized steel pipe. To make the hot-dip galvanizing pipe, firstly do the pickling in order to remove the iron oxide on the surface of the steel pipe, then clean the pipes in the ammonium chloride or zinc chloride aqueous solution, and then put the pipes into Hot-dip galvanized bath, the galvanized layer can improve the corrosion resistance of steel pipe so as to extend the service life. Galvanized steel pipe is not only widely used in the field of water, gas, oil and other general low-pressure fluid pipeline, but also in chemical coking equipment such as oil heater, condensation Cooler, and the bridge piles such as mine tunnel support tube and so on.
1 | Standard: | API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS, JIS, IS |
2 | Out Diameter: | 219.1 mm - 2540mm (8"-100") |
3 | Wall Thickness: | 3.2mm -25.4mm |
4 | Length: | 6 - 12m |
5 | Steel Grade: | API 5L: GR A, GR B, X42, X46, X56, X60, X65, X70 |
6 | ASTM A53: | ASTM A252 GR 1, GR 2, GR 3 |
7 | EN: | S275, S275JR, S355JRH, S355J2H |
8 | BS 4360: | Grade 43, Grade 50 |
9 | Surface: | Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement. |
10 | Test: | Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test. |
11 | Usage: | Used for low pressure liquid delivery, such as water, gas, and oil. |
Galvanized steel pipe is a kind of steel pipe that has been processed by galvanization. The following is an introduction to it:
Galvanized steel pipes are typically produced through either hot-dip galvanizing or electrogalvanizing processes.
Hot-Dip Galvanizing: The steel pipe is immersed in a bath of molten zinc at a high temperature. A chemical reaction occurs, forming a thick, durable zinc coating on the surface of the pipe. This coating provides excellent corrosion resistance and can last for a long time.
Electrogalvanizing: This process uses an electric current to deposit a layer of zinc onto the surface of the steel pipe. The zinc layer is relatively thinner than that of hot-dip galvanizing but still offers good corrosion protection. It is often used for applications where a more precise and smoother coating is required.
Corrosion Resistance: The zinc coating acts as a barrier between the steel and the surrounding environment, preventing moisture, oxygen, and other corrosive substances from coming into contact with the steel, thus significantly extending the service life of the pipe.
Strength and Durability: Steel pipes themselves have high strength and rigidity, and after galvanization, their durability is further enhanced. They can withstand high pressures and various mechanical stresses, making them suitable for a wide range of applications.
Water Supply and Drainage Systems: Commonly used in water supply pipelines to transport clean water to households, factories, and public facilities. They are also used in drainage systems to carry away wastewater and rainwater.
Gas Pipelines: In some cases, galvanized steel pipes are used for gas transmission, providing a safe and reliable way to transport natural gas or other gases.
Construction Industry: Used in building structures for purposes such as scaffolding, structural supports, and as conduits for electrical wiring.
Product Dimensions
Outside Diameter | DN15-400mm |
Wall Thickness | 2-5mm |
National Standard | GB / T3091-2015 low pressure fluid conveying welded steel pipe |
GB / T13793-2008 Straight seam welded steel pipe | |
GB / T21835-2008 Size and weight of welded steel pipe | |
BS 1387-1985 screw steel tubes with BS21 Pipe thread | |
Material | BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52 |
ASTM A 53: Gr. A, Gr B, Gr C, Gr.D | |
API 5L: A, B, X42, X46, X52, X56, X60, X65 X70 | |
GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555 | |
GB/T3091, SY/T5037, SY/T 5040,CJ/T 3022:Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8 | |
Length | Random length or cut length 6m |
End | Plain end or threaded end |
Surface | Hot dip galvanized, Electro galvanized |
Test | Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield, strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test. |
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