Description
Product Description EFW Stainless Steel Pipe
Electric Fusion Welded (EFW) stainless steel pipes are a versatile and reliable solution for various industrial applications requiring superior strength, corrosion resistance, and durability. These pipes are manufactured using an electric fusion welding process, wherein an electric current generates heat to fuse the edges of the stainless steel plate or coil, resulting in a strong and uniform weld seam. EFW stainless steel pipe are known for their seamless appearance and excellent mechanical properties. They are extensively used in industries such as oil and gas, petrochemical, power generation, and water treatment, where high-performance materials are essential. Their exceptional resistance to corrosion, oxidation, and extreme temperatures makes them ideal for transporting liquids and gases in challenging environments.
These pipes are available in a wide range of sizes, thicknesses, and grades, such as 304, 316, 321, and 347 stainless steel, to cater to specific application requirements. The choice of grade depends on the environmental conditions and the chemical properties required for the application. For instance, 316 stainless steel offers enhanced resistance to chloride-induced corrosion, making it suitable for marine and chemical processing applications.
The EFW process ensures the production of pipes with precise dimensions, smooth finishes, and consistent quality, meeting various international standards like ASTM, ASME, and DIN. Additionally, these pipes undergo rigorous testing, including hydrostatic tests, non-destructive testing (NDT), and chemical analysis, to ensure they meet the highest safety and performance standards.
EFW Stainless Steel Pipe Dimensions (ASTM A358/ASTM A312)
| Nominal Pipe Size (NPS) | Outer Diameter (OD) | Wall Thickness (Schedule) | Weight (kg/m) |
|---|---|---|---|
| 1/2" | 21.34 mm | SCH 10 (2.11 mm) | 1.17 |
| 3/4" | 26.67 mm | SCH 40 (2.87 mm) | 1.59 |
| 1" | 33.40 mm | SCH 40 (3.38 mm) | 2.41 |
| 2" | 60.33 mm | SCH 40 (3.91 mm) | 5.42 |
| 4" | 114.30 mm | SCH 40 (6.02 mm) | 14.98 |
| 6" | 168.28 mm | SCH 20 (4.78 mm) | 22.09 |
| 8" | 219.08 mm | SCH 40 (8.18 mm) | 50.04 |
| 10" | 273.05 mm | SCH 20 (5.54 mm) | 42.76 |
| 12" | 323.85 mm | SCH 40 (10.31 mm) | 79.60 |
| 14" | 355.60 mm | SCH 20 (6.35 mm) | 69.92 |
| 16" | 406.40 mm | SCH 40 (12.70 mm) | 122.31 |
Notes:
- Standards: Dimensions follow ASTM/ASME standards; tolerances may vary.
- Schedules: Represent wall thickness (SCH 10, SCH 20, SCH 40, etc.). Choose based on pressure and application requirements.
- Weights: Approximate values, dependent on grade and finish.
Key Features of EFW Stainless Steel Pipe:
- Superior Corrosion Resistance: Ideal for harsh environments, including acidic and saline conditions.
- High Durability: Manufactured to endure extreme pressure and temperature conditions.
- Smooth Weld Finish: Ensures uniformity and high aesthetic value.
- Variety of Grades: Available in multiple grades, including 304, 316, 321, and 904L, to suit diverse applications.
- Cost-Effective: Offers an economical alternative for medium-to-high-pressure applications.
Applications:
- Oil & Gas Industry: Transportation of crude oil and natural gas.
- Chemical Processing: Handling corrosive fluids and chemicals.
- Power Plants: Boiler piping and heat exchanger systems.
- Water Treatment Plants: Desalination and wastewater systems.
- Structural Applications: Construction and framework support.
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