Pressure-bearing transportation carrier: Shixinda's China Hot Dip Galvanized Seamless Steel Pipe has an unaltered seamless base without welds, capable of withstanding medium and high-pressure fluid transportation, suitable for water, gas, oil, and fire-fighting medium transportation;
Long-lasting anti-corrosion structural pipe material: The zinc layer acts as a sacrificial anode to protect the steel, solving the problem of easy rusting and short lifespan of ordinary black-painted seamless pipes, suitable for outdoor, humid, and mild corrosive environments;
General engineering load-bearing components: Used for pipe supports, steel structure frames, guardrails, equipment bases, taking into account both structural strength and weather resistance and rust prevention;
Special fire protection matching pipe materials: Complying with fire pressure-bearing and rust prevention standards, they are the mainstream pipe materials for sprinkler and fire hydrant systems.
Application scenarios: Municipal water supply and drainage, gas pipelines, fire protection projects, photovoltaic supports, chemical low-pressure fluid transportation, greenhouse steel structures, HVAC pipelines.
No weld seams, strong pressure-bearing capacity. It is unlikely to crack or leak under high-pressure conditions, and the safety factor is much higher than that of galvanized welded pipes. The overall mechanical properties are uniform, with excellent impact resistance and bending resistance, suitable for underground, elevated, and vibration-resistant equipment applications.
The hot-dip galvanizing layer has strong adhesion, uniform thickness, and is resistant to rain, soil, and mild acid-base corrosion. The underground service life can reach 15–30 years.
The zinc layer has self-healing properties. When the pipe is slightly scratched, the zinc oxidizes first, protecting the inner steel pipe from rusting.
The inner and outer walls are fully galvanized, eliminating the risk of internal rust blockage or leakage.
The surface is smooth and does not accumulate dirt, and the resistance to fluid transmission is small.
The galvanized layer has a rust-preventing layer on its own, so no additional painting for anti-corrosion is required at the site, reducing labor and paint costs.
It is easy to weld, thread connect, and assemble with flanges, suitable for various pipeline installation techniques.
Outdoor and open-air use does not require frequent maintenance, significantly reducing the cost of later maintenance and replacement.
It can be produced in accordance with national standards GB/T 8163, GB/T 3091, and fire protection special standards. The qualifications are complete, meeting the requirements for project acceptance and bidding.
Fluid transportation: GB/T 8163 (20# carbon steel seamless pipe hot-dip galvanizing)
Low-pressure fluid fire protection: GB/T 3091
Hot-dip galvanizing process standard: GB/T 13912
Mainstream: 20# seamless steel pipe; Custom: Q355B, 45# etc.
|
Nominal Diameter DN |
Outer Diameter (mm) |
Common Wall Thickness Range (mm) |
|
DN15 |
21.3 |
2.5–3.5 |
|
DN20 |
26.9 |
2.5–3.75 |
|
DN25 |
33.7 |
2.75–4.0 |
|
DN32 |
42.4 |
2.75–4.0 |
|
DN40 |
48.3 |
3.0–4.25 |
|
DN50 |
60.3 |
3.0–4.5 |
|
DN65 |
76.1 |
3.25–5.0 |
|
DN80 |
88.9 |
3.5–5.5 |
|
DN100 |
114.3 |
4.0–6.0 |
|
DN125 |
139.7 |
4.0–6.5 |
|
DN150 |
168.3 |
4.5–7.0 |
|
DN200 |
219.1 |
5.0–8.0 |
Case 2: Supporting column pipe materials for ground-mounted photovoltaic power stations in North China (New Energy Engineering Supplier)
The 50MW ground photovoltaic project in Cangzhou uses Shixinda Φ76×3.5 and Φ114×4.0 galvanized seamless steel pipes for the support columns and diagonal braces. These pipes are designed for outdoor use in saline-alkali land environments with a durability standard of 25 years. They have an extra thick hot-dip zinc coating.
Customer feedback (Mr. Li, Head of New Energy Procurement):
The base material of Shixinda galvanized seamless pipes is 20# seamless billet, with sufficient wall thickness. The supports have a much greater ability to resist wind-induced deformation than thin-walled welded pipes.
The zinc coating has good adhesion, and the zinc layer at the cutting and welding positions has strong self-healing properties. Outdoor installation does not require additional anti-corrosion treatment, significantly saving labor costs.
Shixinda's Hot Dip Galvanized Seamless Steel Pipes are made from high-quality 20# carbon steel seamless pipes and processed using standard hot-dip galvanizing technology. They have no welds, and the zinc layer on the inner and outer walls is uniform and dense, featuring high strength, pressure resistance, and long-term corrosion resistance. The zinc layer has an inherent anode self-healing protection function, suitable for humid, saline-alkali, and outdoor highly corrosive complex working conditions. They are specialized pipes for fire protection, municipal engineering, new energy, and chemical engineering projects.
The product covers all specifications from DN15 to DN200 standard pipe diameters, with sufficient wall thickness, in accordance with the national standard GB/T8163 for engineering projects. The qualification documents are complete. The company benefits from the advantageous source storage in Daxiu Zhuang, Tianjin, and has sufficient stock. It supports cutting, threading, and pre-processing of bevels, and can deliver orders of any size as per customer requirements. Rush orders can be delivered urgently.
The products are widely applied in commercial complex fire protection systems, urban and rural municipal water supply, ground photovoltaic support structures, factory steel structure guardrails, etc. At the same time, they are stably exported to infrastructure projects in Central Asia and Southeast Asia. Many general contractors and procurement customers have feedback: The product has zero leakage during pressure testing, a high acceptance rate, and a lifespan of over 20 years in outdoor and buried conditions. The manufacturer's direct supply is cost-effective, with stable supply and prompt after-sales response. It is the preferred brand for long-term cooperation in engineering pipe materials.
Address
S213 Jinghai District, Tianjin City, China
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