Our Q235B ERW welded pipe DN15 is engineered as a precision thin-wall electric resistance welded steel tube, with a controlled wall thickness range of 1.5mm, 1.6mm and 1.7mm. Designed for reliable performance in medium-low pressure fluid and structural applications, this DN15 ERW steel pipe delivers consistent roundness, uniform wall distribution, stable weld quality and excellent dimensional repeatability.
Why DN15 Q235B ERW Tube Is Preferred for Industrial Piping
The DN15 size is one of the most widely used nominal diameters in industrial and civil piping systems. Combined with Q235B low carbon structural steel, this ERW welded pipe offers a balanced combination of strength, ductility and weldability. The 1.5mm–1.7mm wall thickness range is selected for applications where lightweight construction, good rigidity and controlled material cost are required.
Compared with heavier-wall pipes, our 1.5mm–1.7mm DN15 ERW steel pipe reduces overall system weight while maintaining sufficient mechanical performance for normal working conditions. Compared with standard seamless pipes, it provides a more cost-effective solution without sacrificing connection accuracy or surface finish quality.
Performance Advantages
1. Precise Dimensional Control
The DN15 ERW steel pipe is produced with strict control over outer diameter, wall thickness and straightness. This ensures better compatibility with standard pipe fittings, valves and connectors, reducing installation time and improving sealing reliability.
2. Stable Weld Quality
ERW welding technology enables a continuous and uniform weld seam. When properly formed and inspected, the weld zone achieves structural integrity suitable for medium-low pressure applications, reducing the risk of leakage at the joint.
3. Good Material Workability
Q235B steel provides good ductility and toughness under normal temperature conditions. The pipe can be cut, bent, welded and assembled on site without excessive difficulty, which helps improve construction efficiency.
4. Lightweight yet Strong
The 1.5mm–1.7mm wall thickness offers an optimized balance between material weight and mechanical strength. It is suitable for piping systems that do not require extra-heavy wall construction but still demand consistent structural performance.
Application Areas
Our Q235B ERW welded pipe DN15 is used in a variety of industrial and civil applications, including:
-- Water supply and drainage piping systems
-- Compressed air and industrial gas pipelines
-- Fire protection pipe networks
-- Mechanical equipment supports and frames
-- Light steel structure components
-- Municipal utility piping
-- Process piping in industrial plants
It is suitable for medium-low pressure applications in normal temperature and conventional environments.
FAQ
What is the outer diameter of DN15 ERW pipe?
The standard outer diameter is 21.3mm.
What does DN15 mean?
DN15 is a nominal diameter designation. It indicates the approximate internal flow diameter and is used for matching pipe fittings and valves.
What is the difference between 1.5mm, 1.6mm and 1.7mm wall thickness?
1.5mm is suitable for lightweight applications; 1.6mm offers a balance between weight and strength; 1.7mm provides higher rigidity and pressure-bearing capacity for more demanding conditions.
Can you produce galvanized DN15 Q235B ERW pipe?
Yes, both black bare and hot-dip galvanized options are available.
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