Akor Stainless is a well-respected manufacturer and supplier located in Abuja, Nigeria, specializing in high-performance Stainless Steel 439 Pipes. These pipes are crafted for exceptional corrosion resistance, thermal stability, and weldability. Designed to perform reliably in both oxidizing and mildly corrosive environments, Stainless Steel 439 stands out with its enhanced toughness and resistance to stress corrosion cracking compared to traditional grades. Akor Stainless takes pride in ensuring that each pipe is meticulously engineered, tested, and finished to meet international quality standards. SS 439 Pipes find extensive use in automotive, petrochemical, construction, and heat exchanger applications where strength and long-lasting durability are crucial.
Stainless Steel 439 Pipes are composed of 17–19% chromium, along with trace amounts of titanium to help stabilize the alloy against intergranular corrosion. With a carbon content of less than 0.03%, these pipes boast improved weldability and corrosion resistance. The alloy features a tensile strength of approximately 450 MPa, a yield strength of around 275 MPa, and an elongation of up to 22%. It also maintains excellent oxidation resistance at temperatures reaching 875°C and demonstrates good mechanical stability under thermal stress. SS 439 showcases a ferritic microstructure, high thermal conductivity, and low expansion, ensuring it retains its shape during both fabrication and operation.
| Specifications | ASTM A/ASME SA268/A731 CL |
| Dimensions | ASTM, ASME and API |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Wall Thickness | Sch 5s, 10s, 40s, 80s, 160, XXS |
| Size – Seamless 439 Pipes | 1/2″NB – 24″NB |
| ERW 439 Pipes | 1/2″ NB – 24″ NB |
| EFW 439 Pipes | 6″ NB – 100″ NB |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Types | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| End | Plain End, Beveled End, Treaded |
| Length | Single Random, Double Random & Cut Length. (Custom Sizes Available as per customers requirement) |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | CU | |
| 439 | Min | – | – | – | – | – | 12.0 | – | – | – |
| max | 0.15 | 1.00 | 1.00 | 0.04 | 0.03 | 14.0 | – | – | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 439 | 95,000 | 50,000 | 25 | – | 175 |
Contact us to get a quick quote for your requirement.
We ensures the highest quality standards for Stainless Steel 439 Pipes through rigorous testing and certification processes. Every pipe goes through extensive tests, including chemical analysis, mechanical testing, and dimensional inspection. In this regard, we provide suitable certificates like Mill Test Certificate (MTC) and ISO certifications to make sure every product stands as a reliable brand and follows the market norms.
Stainless Steel 439 Square Pipes offer excellent corrosion resistance and are used in applications requiring a robust structure. They typically come in sizes ranging from 1/2″ to 8″, with wall thicknesses varying based on the application.
These pipes offer superior corrosion resistance and are used in high-temperature environments. They are available in sizes from 1/4″ to 12″ in diameter, with wall thicknesses ranging from 0.5mm to 20mm.
Providing good corrosion resistance, these pipes are manufactured using the electric resistance welding process. They are available in sizes from 1″ to 12″ in diameter, with various wall thicknesses for different pressure ratings.
These pipes, known for their corrosion resistance, are produced by longitudinal submerged arc welding. Sizes typically range from 6″ to 48″ in diameter, with wall thicknesses from 5mm to 25mm.
Offering excellent corrosion resistance, these pipes are used in various industries. They come in sizes from 1/4″ to 12″ in diameter, with wall thicknesses ranging from 1mm to 15mm.
These pipes exhibit good corrosion resistance and are made by welding flat plates. They are available from 1″ to 24″ in diameter, with wall thicknesses tailored to specific pressure and temperature requirements.
Stainless Steel 439 Pipes are widely utilized in automotive exhaust systems, heat exchangers, and gas heaters, thanks to their impressive resistance to heat and corrosion. They excel in chemical processing, food industries, and architectural structures where durability and formability are essential. The pipes’ ability to resist scaling and chloride stress cracking makes them perfect for hot water systems, boiler tubes, and flue gas lines. In industrial settings, SS 439 pipes serve as a cost-effective alternative to 304 stainless steel, providing high-temperature performance and ease of fabrication.
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