Factory Direct Welded Carbon Steel Pipe | Durable ERW Tube for Structures
Factory Direct Welded Carbon Steel Pipe | Durable ERW Tube for Structures
Feature
-
ERW Pipe (Electric Resistance Welded) delivers superior cost performance and more consistent wall thickness compared to seamless alternatives. Its applications span fencing, scaffolding, and general engineering projects. At SMC, we ensure uncompromising precision by sourcing premium raw materials and implementing a stringent quality management system throughout production.
1)Grade: Q345B, API X42-X80, L245, J55
2)Outer Diameter: Φ219-Φ660mm
3)Wall Thickness: 6-22mm
4)Length: 3-12m, customized
5)Test: hydro testing, ultrasonic detection, ultrasonic testing for pipe end, visual and dimension inspection, weighing and measuring, etc.
| DN | NPS | mm | STANDARD | EXTRA STRONG | SCH40 | |||
| THICKNESS (mm) |
WEIGHT (kg/m) |
THICKNESS (mm) |
WEIGHT (kg/m) |
THICKNESS (mm) |
WEIGHT (kg/m) |
|||
| 6 | 1/8 | 10.2 | 2.0 | 0.40 | 2.5 | 0.47 | 1.73 | 0.37 |
| 8 | 1/4 | 13.5 | 2.5 | 0.68 | 2.8 | 0.74 | 2.24 | 0.63 |
| 10 | 3/8 | 17.2 | 2.5 | 0.91 | 2.8 | 0.99 | 2.31 | 0.84 |
| 15 | 1/2 | 21.3 | 2.8 | 1.28 | 3.5 | 1.54 | 2.77 | 1.27 |
| 20 | 3/4 | 26.9 | 2.8 | 1.66 | 3.5 | 2.02 | 2.87 | 1.69 |
| 25 | 1 | 33.7 | 3.2 | 2.41 | 4.0 | 2.93 | 3.38 | 2.50 |
| 32 | 1 1/4 | 42.4 | 3.5 | 3.36 | 4.0 | 3.79 | 3.56 | 3.39 |
| 40 | 1 1/2 | 48.3 | 3.5 | 3.87 | 4.5 | 4.86 | 3.68 | 4.05 |
| 50 | 2 | 60.3 | 3.8 | 5.29 | 4.5 | 6.19 | 3.91 | 5.44 |
| 65 | 2 1/2 | 76.1 | 4.0 | 7.11 | 4.5 | 7.95 | 5.16 | 8.63 |
| 80 | 3 | 88.9 | 4.0 | 8.38 | 5.0 | 10.35 | 5.49 | 11.29 |
| 100 | 4 | 114.3 | 4.0 | 10.88 | 5.0 | 13.48 | 6.02 | 16.07 |
| 125 | 5 | 139.7 | 4.0 | 13.39 | 5.5 | 18.20 | 6.55 | 21.77 |
| 150 | 6 | 168.3 | 4.5 | 18.18 | 6.0 | 24.02 | 7.11 | 28.26 |
| 200 | 8 | 219.1 | 6.0 | 31.53 | 6.5 | 30.08 | 8.18 | 42.55 |
Resistance welding is widely recognized for its productivity, affordability, material efficiency, and suitability for automated operations—hence its broad deployment in industries ranging from aviation and automotive to energy, electronics, and consumer goods. When applied to pipe manufacturing, the critical distinction between ERW and seamless steel pipe lies in the welded seam, which is also the primary quality control focus. ERW pipe utilizes high-frequency resistance heating to melt the strip edge material itself, yielding a weld zone with mechanical properties superior to those of ordinary Welded Steel Pipe. In practical terms, ERW offers customers:
(1) significant cost savings over seamless pipe, and
(2) improved wall-thickness consistency for demanding applications.
1. Cost-Effective Solution
ERW pipe offers significant cost advantages over seamless steel pipe, reducing project budgets while maintaining reliable performance for large-scale industrial applications.
2. Superior Weld Strength
The high-frequency resistance welding process fuses the strip's base metal, producing a weld zone with mechanical properties that outperform ordinary welded steel pipe and ensure long-lasting structural integrity.
3. Precision Dimensional Control
ERW pipe delivers tighter wall thickness tolerances and consistent dimensions, providing the accuracy required for demanding engineering, scaffolding, and construction projects.
1. Oil & Gas Transportation
ERW steel pipe is widely used as a reliable welded pipe for transporting oil, natural gas, and other vapor-liquid media, efficiently meeting both high-pressure and low-pressure requirements in the energy sector.
2. Industrial & Aerospace Applications
As a high-performance welded steel pipe, ERW steel pipe serves critical roles in aviation, aerospace, automotive, and electronics industries, where precision and durability are essential for demanding operational environments.
3. Infrastructure & Light Industry
ERW steel pipe functions as a versatile welded steel pipe in scaffolding, construction, and light manufacturing, while also playing a key role in global pipeline networks for energy distribution and civil engineering projects.
Application
As China metal materials industry leading enterprises, the national steel trade and logistics "Hundred good faith enterprise",China steel trade enterprises, "Top 100 private enterprises in Shanghai”. Shanghai Zhanzhi industry Group Co., Ltd.,(shorted to Zhanzhi Group) takes the" Integrity, Practicality, Innovation, Win-Win " as its sole operation principle, always persist in putting the customer demand in the first place.
- INTEGRITY
- WIN-WIN
- PRAGMATIC
- INNOVATION
