As a galvanized steel pipe manufacturer and supplier, GNEE STEEL Group offers a wide range of DX53D Gi pipes, including round pipes, square pipes, hot-dip galvanized and electro-galvanized steel pipes, pre-galvanized steel pipe,suitable for a variety of applications such as building structures, fluid transportation, wire casings, etc. Our products have excellent corrosion resistance and comply with EN, JIS, GB and other standards.
We also provide processing services such as cutting, bending, welding, punching, and other grades and types of steel such as dx51d to meet customers' customized needs.
Products show

DX53D Galvanized Steel Pipe is an integral part of many industries, such as liquid transportation, gases and substances. Therefore, it's essential that these pipes be made out of durable materials which can withstand corrosives elements and other damages.
The molten zinc coating applied to the outer surface of galvanized steel pipe offers protection from corrosion. Corrosion occurs when metals lose oxygen ions to oxidizing elements like dirt, chemicals, moisture or salt.
Standards: JIS G3302, ASTM A653M, EN10327, DIN 17162, EN 10142, EN 10147, EN 10292, JIS G3302
Material: DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z, S220GD+Z, DX51D+Z/SGCC/A653, 10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35,etc
Zinc Coating: 40-600g/㎡
Width: Length:Single random length/Double random length5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
Thickness: 0.1-6.5mm or customized as required
End Finish:Plain, beveled, threaded, grooved, or coupling,protected by plastic caps on both ends, cut quare,etc.
Pipe Ends:Plain or threaded
Surface Treatment:
1. Galvanized
2. PVC,Black and color painting
3. Transparent oil,anti-rust oil
4. According to clients requirement
Product Application:
1. Fence, greenhouse, door pipe,greenhouse2. Low pressure liquid, water, gas, oil, line pipe3. For both indoor and outdoor the building construction4. Widely used in scaffolding construction which is much cheaper and convenient
Products Description
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Normal Size(mm) |
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Ф21×4 |
Ф87×17.5 |
Ф121×19 |
Ф168×19 |
|
Ф21×4.5 |
Ф89×6-12 |
Ф124×6.5 |
Ф168×8 |
|
Ф22×6.5 |
Ф89×15 |
Ф127×10 |
Ф170×25 |
|
Ф25×8 |
Ф89×17 |
Ф127×13 |
Ф172×18 |
|
Ф28×8 |
Ф91×7.5 |
Ф127×8 |
Ф180×10 |
|
Ф30×10 |
Ф92×12 |
Ф130×12 |
Ф180×18 |
|
Ф30×8 |
Ф95×10 |
Ф130×18 |
Ф180×6 |
|
Ф32×8 |
Ф95×12 |
Ф133×6-12 |
Ф180×8 |
|
Ф34×6 |
Ф95×16 |
Ф133×18 |
Ф183×18 |
|
Ф34×8 |
Ф95×20 |
Ф140×8-12 |
Ф185×18 |
|
Ф38×10 |
Ф95×5.5 |
Ф140×15 |
Ф185×20 |
|
Ф38×8 |
Ф95×8 |
Ф140×20 |
Ф192×18 |
|
Ф40×10 |
Ф100×8.5 |
Ф142×18 |
Ф194×10 |
|
Ф40×8 |
Ф100×13 |
Ф145×18 |
Ф194×16 |
|
Ф42×5-10 |
Ф102×6-10 |
Ф146×10 |
Ф196×16 |
|
Ф45×6-12 |
Ф102×15 |
Ф146×12 |
Ф196×24 |
|
Ф48×5-10 |
Ф104×8.5 |
Ф152×10 |
Ф200×20 |
|
Ф50×8-12 |
Ф108×6-10 |
Ф152×12 |
Ф219×6-12 |
|
Ф51×10 |
Ф108×13 |
Ф152×14 |
Ф219×15 |
|
Ф55×10 |
Ф108×15 |
Ф152×20 |
Ф245×10 |
|
Ф57×6-10 |
Ф110×6 |
Ф152×6 |
Ф250×25 |
|
Ф60×6-12 |
Ф114×6-10 |
Ф152×8 |
Ф273×6-12 |
|
Ф65×6-12 |
Ф114×13 |
Ф159×6-10 |
Ф273×34 |
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Ф68×6-12 |
Ф114×17.5 |
Ф159×12 |
Ф325×8-10 |
|
Ф70×8 |
Ф116×12 |
Ф159×15 |
Ф355×14 |
|
Ф70×10 |
Ф116×8 |
Ф159×18 |
Ф377×10 |
|
Ф76×6-12 |
Ф118×2 |
Ф159×22 |
Ф406×14 |
|
Ф80×8-12 |
Ф121×6-11 |
Ф168×10 |
Ф457×14 |
|
Ф83×8-12 |
Ф121×16 |
Ф168×12 |
Ф508×15 |

DX53D galvanized steel pipes information
At GNEE STEEL Group, we subject our DX53D galvanized steel pipes to stringent quality controls, consistently meeting high standards for durability, reliability, and performance in a wide range of applications.
Raw material inspection: We start with high-grade steel coils, ensuring the chemical composition is up to standard, with carbon content ≤0.12% and manganese content ≤0.60%. Surface defects are also checked to guarantee smooth processing.
Zinc coating thickness testing: We use micrometers and magnetic gauges to ensure uniform coating thickness, ranging from 60 g/m² to 275 g/m². Thicker coatings are particularly suitable for outdoor and coastal environments, providing superior corrosion protection.
Tensile and yield strength testing: The pipes have a tensile strength between 270 MPa and 370 MPa, with a minimum yield strength of 140 MPa. This ensures that the pipes can withstand mechanical stress without deformation, making them suitable for structural and industrial applications.


Impact and elongation testing: Impact and elongation testing confirms the pipes' ability to withstand sudden shocks, especially at low temperatures. We also check for elongation of ≥ 26% (thickness ≤ 0.7 mm) and ≥ 30% (thickness > 0.7 mm), ensuring good ductility for forming and bending.
Dimensional accuracy and surface inspection: We continuously monitor the outer diameter (± 0.5%), wall thickness (± 0.2 mm) and length (± 10 mm). Surface inspection ensures a smooth and uniform surface without dents, uneven coating or defects.
Corrosion resistance verification: Using salt spray testing, we simulate prolonged exposure to a corrosive environment. Pipes that maintain integrity in the salt spray test for more than 96 hours are confirmed to have a strong and durable coating that ensures long-term rust protection.
Hot dip galvanized steel pipe Industries & Applications
Building and Infrastructure
Used for building scaffolding, support structures, guardrails and fences, with good strength and corrosion resistance.
Widely used in steel structure buildings, bridges, sheds and frame structures.
Fluid transportation
- Suitable for conveying fluids such as water, oil, and gas. The galvanized coating inside and outside the pipe can prevent corrosion.
- Commonly used in scenes such as industry, agricultural irrigation, and urban water supply systems.
Cable protection
- Used as a protective sleeve for wires and cables to prevent damage to the cables from the external environment.
- Suitable for underground cable laying, building electrical installation and other fields.

Home appliances and furniture manufacturing
- Used to make components for home appliances such as washing machines, refrigerators, and air conditioners to extend the service life of the products.
- Make furniture such as tables, chairs, bed frames, and shelves, which are both beautiful and durable.
Agricultural equipment
- Used for greenhouse frames, agricultural machinery and equipment, irrigation pipes, etc., to resist moisture and corrosion.
- Suitable for the construction and maintenance of various agricultural facilities.
Transportation
- Can be used for exhaust pipes and other parts in automobile manufacturing because of its corrosion resistance and good processing performance.
- Used for protective railings on roads and bridges and railway signal equipment.
Outdoor facilities
- Outdoor guardrails, light poles, bicycle racks and other equipment in parks and squares.
- Suitable for long-term use in harsh weather environments and has good weather resistance.

Packing & shipping
- With wooden pallets or film covered, in the containers.
- Export standard package or as the customers demand.
- Seaworthy wooden cases.
- With or without edge protectors, steel hoops, and seals.
- Export standard package or as per customer's signal requirement.


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