DN350 welded steel pipe is known as one of the important materials for many projects. From industry and construction to civil.
Welded steel pipes always appear in many pipeline projects. Below, Bao Tin Steel will inform you more about this product line!

Technical specifications of DN350 welded steel pipe
- Standard: ASTM A106 Grade B, ASTM A53-Grade B, API 5L
- Diameter: 355.6 mm
- Thickness: 3.5mm – 25.4 mm
- Length: 6m – 12 m
- Origin: Import, SUNSCO Steel Company
SPECIFICATION TABLE OF WELDED STEEL PIPES ϕ 355
| NOMINAL SIZE DN | OUTSIDE DIAMETER OD (MM) | THICKNESS (MM) | VOLUME (KG/M) |
|---|---|---|---|
| 350 | 355.6 | 6.4 | 55.1 |
| 7.9 | 67.7 | ||
| 9.0 | 76.9 | ||
| 9.5 | 81.1 | ||
| 12.0 | 102 | ||
| 12.7 | 107 |
CHEMICAL COMPOSITION OF STEEL GRADE FOR FABRICATION OF WELDED STEEL PIPES ϕ 355


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