Walid Stainless, a leading manufacturer and supplier based in Tunis, Tunisia, offers high-quality Stainless Steel Rectangular Pipes designed for strength, durability, and aesthetic appeal. Manufactured using premium-grade stainless steel and advanced fabrication techniques, our rectangular pipes provide excellent dimensional accuracy, smooth surface finish, and superior corrosion resistance. Walid Stainless ensures strict quality control and compliance with international standards, making these pipes suitable for both structural and architectural applications. With a commitment to consistent quality, competitive pricing, and timely delivery, Walid Stainless stainless steel rectangular pipes deliver reliable performance in demanding industrial and construction environments.
Stainless Steel Rectangular 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. Mechanically, rectangular pipes offer good tensile and yield strength, excellent formability, and resistance to impact and fatigue. They maintain structural stability under varying loads and environmental conditions, ensuring long-term performance and dimensional integrity.
| Size | 10 X 20, 12.75 X 25.4, 10 X 30, 15 X 30, 20 X 40, 20 x 50, 25 X 50, 20 x 60, 40 X 60, 40 X 80, 45 X 75, 50 X 100 |
|---|---|
| Grades | TP – 304, 304L, 316, 316L, 201 |
| Standards | A312 – A358 – A409 – A554 – A778 – A789 – A790 |
| Tolerance on Length | Commercial Length: 6000 milimeter +/- 30 milimeter Fix Length: from 1200 milimeter up to 12000 milimeter with a tolerance up to -0/+ 5mm |
| Finish | Polished Grit 120 – 600, Seamless, Welded, Brushed, Pickled, Solution Annealed and Pickled up to O.D. 219.1 milimeter,Mirror Polished |
| PIPE GRADES | UNS | C | Mn | P | S | Si | Cr | Ni | Mo | Ti | Nb | N |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | ||||
| TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | ||||
| TP316 | S3160 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | |||
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
| Material | Heat | Temperure | Tensile Strength | Yield Strength | Elongation %, Min |
|---|---|---|---|---|---|
| Treatment | Min. | Ksi (MPa), Min. | Ksi (MPa), Min. | ||
| º F(º C) | |||||
| TP304 | Solution | 1900 (1040) | 75(515) | 30(205) | 35 |
| TP304L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
| TP316 | Solution | 1900(1040) | 75(515) | 30(205) | 35 |
| TP316L | Solution | 1900(1040) | 70(485) | 25(170) | 35 |
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The company also conducts various tests to ensure the pipes are of high standard before being shipped out. Some of the tests include Hardness Test, Chemical Analysis via Spectro Analysis, Positive Material Identification (PMI)-Testing, Flattening Test, Micro & Macro Test, Pitting Resistance Test, Flaring Test, and Intergranular Corrosion (IGC)-Test among others. In addition, the documentation is very complete for full traceability and observance of industrial standards.
Yes, stainless steel rectangle pipes can be welded using appropriate welding techniques such as TIG or MIG welding. Proper preparation and filler material are essential for strong, durable welds.
Stainless steel rectangle pipes are highly resistant to corrosion due to their chromium content. However, they may corrode in harsh environments with high chloride exposure or inadequate maintenance.
Yes, stainless steel rectangle pipes can be used for natural gas applications due to their strength, corrosion resistance, and ability to withstand high pressure, ensuring safe and durable performance.
Stainless steel rectangle pipes made from austenitic grades (like 304 and 316) are generally non-magnetic. However, some ferritic or martensitic grades may exhibit magnetic properties.
Stainless Steel Rectangular Pipes are widely used in construction, fabrication, and industrial applications. Common uses include structural frameworks, supports, columns, and beams, as well as architectural elements such as railings, facades, and decorative structures. They are also used in automotive components, furniture manufacturing, material handling systems, and equipment frames. Due to their corrosion resistance and strength, these pipes are suitable for outdoor and marine environments. Stainless steel rectangular pipes combine functionality and appearance, making them ideal for both load-bearing and design-oriented applications..







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