Walid Stainless, a trusted manufacturer and supplier based in Tunis, Tunisia, offers high-quality Stainless Steel EFW (Electric Fusion Welded) Pipes designed for strength, reliability, and cost-effective performance. Manufactured using advanced electric fusion welding technology and premium stainless steel plates, our EFW pipes provide excellent dimensional accuracy, smooth surface finish, and consistent weld integrity. Walid Stainless EFW pipes comply with international quality standards and are suitable for demanding industrial and structural applications. With a strong focus on quality control, timely delivery, and customer satisfaction, Walid Stainless delivers dependable piping solutions to global markets.
Stainless Steel EFW Pipes are commonly produced from grades such as SS 304, 304L, 316, and 316L. These alloys contain chromium for corrosion resistance and nickel for improved strength and toughness, while low carbon variants enhance weldability and resistance to intergranular corrosion. Mechanically, EFW pipes offer good tensile and yield strength, excellent formability, and reliable pressure-handling capability. The fusion-welded seam ensures uniform mechanical properties and structural stability under varying temperature and service conditions.
| Range : | 1/8” NB to 36” NB, 1/4” OD to 36” OD |
|---|---|
| Outer Diameter : | 6.35 mm O.D to 114.3 mm O.D |
| Thickness : | 0.8 mm to 12.7 mm |
| Length : | up to 26 Meters |
| Specifications : | ASTM A312 / ASTM SA312 |
| Types : | As Welded, EFW, ERW |
| End : | Plain End, Beveled End |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304 | min. max. | – 0.08 | – 2.0 | – 0.75 | – 0.045 | – 0.030 | 18.0 20.0 | – | 8.0 10.5 | – 0.10 |
| 304L | min. max. | – 0.030 | – 2.0 | – 0.75 | – 0.045 | – 0.030 | 18.0 20.0 | – | 8.0 12.0 | – 0.10 |
| 304H | min. max. | 0.04 0.10 | – 2.0 | – 0.75 | -0.045 | – 0.030 | 18.0 20.0 | – | 8.0 10.5 | – |
| Element | SS 304 |
|---|---|
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
| Elongation | 35 % |
Contact us to get a quick quote for your requirement.
We perform high-quality testing on our materials before delivering them to customers. The tests performed are hardness check, chemical analysis, PMI testing, flattening tests, micro and macro examination. All necessary documents such as sales invoice, packing lists, certificates of origin, and a quality assurance letter are provided. For extra peace of mind, customers can ask for third-party inspection reports.
Yes, Stainless Steel EFW pipes can be used for underground applications due to their corrosion resistance, strength, and durability, making them ideal for transporting fluids and gases in harsh environments.
To select the right Stainless Steel EFW pipes, consider factors like the material grade, pipe size, pressure requirements, environmental conditions, and compatibility with the substances being transported. Consult with an expert if needed.
Stainless Steel EFW pipes are sized based on their nominal diameter (ND) and wall thickness, which determine their strength, pressure capacity, and suitability for various applications. Standard sizing follows industry specifications.
Common grades of stainless steel used in EFW pipe manufacturing include 304, 316, 316L, and 321. These grades offer excellent corrosion resistance, strength, and durability for various industrial applications.
Stainless Steel EFW Pipes are widely used in industries requiring large-diameter piping and reliable performance. Typical applications include oil and gas transmission, chemical and petrochemical processing, power generation, water treatment plants, and desalination systems. They are also used in structural, marine, and offshore projects where corrosion resistance and strength are critical. EFW pipes are suitable for low to medium pressure applications and long-distance pipelines, offering a cost-effective solution with excellent durability and service life in harsh environments.
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