MERIH STAINLESS, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of Stainless Steel 439 tubing. They deliver high-quality solutions for industries that need durability, heat resistance, and protection against corrosion. Thanks to their advanced manufacturing techniques and rigorous quality control, MERIH STAINLESS guarantees that each tube meets international standards for precision, strength, and performance. Designed for long-lasting use in tough environments, Stainless Steel 439 tubing offers excellent dimensional stability along with resistance to oxidation and scaling. Available in various sizes and specifications, these tubes are trusted in sectors like automotive, power generation, chemical processing, and industrial applications.
Stainless Steel 439 tubing is a ferritic stainless steel alloy primarily made of iron and chromium, with small amounts of titanium and niobium added for improved stability and corrosion resistance. With a chromium content of around 17–19%, this tubing excels in resisting high-temperature oxidation, scaling, and stress corrosion cracking. It boasts solid mechanical properties, including tensile strength, thermal stability, and durability even at elevated temperatures. The ferritic structure not only provides magnetic properties but also maintains dimensional integrity under thermal stress, making Stainless Steel 439 tubing a great fit for demanding industrial and engineering settings.
| GRADES | TP 439 Stainless Steel Tubes / UNS S43035 / DIN 1.4510 |
| SIZE | 1/2″ NB to 24″ NB |
| STANDARDS | ASTM A213, ASTM A249, ASTM A554, ASTM A269, ASTM A270, ASTM A790, ASTM A789 |
| TYPE | Seamless Tubes, Welded Tubes, EFW Tubes, ERW Tubes, Fabricated Tubes, Cold Drawn Welded Tubes (CDW Tubes) |
| FORM | Round Tubes, Square Tubes, Rectangular Tubes, Oval Tubes, Hydraulic Tube, etc. |
| END | Plain End, Treaded, Beveled End |
| TOLERANCE on Length | Commercial Length: 6000mm +/- 30mm Fix Length: from 1200 mm up to 12000mm with a tolerance up to -0/+ 5mm |
| FINISH | Seamless, Welded, Brushed, Pickled, Solution Annealed and Pickled up to O.D. 219.1mm, Polished Grit 120 – 600, Mirror Polished |
| Element | 439 |
| Carbon | 0.030 |
| Chromium | 17.0-19.0 |
| Nickel | 0.50 |
| Manganese | 1.00 |
| Silicon | 1.00 |
| Nitrogen | 0.030 |
| Phosphorus | 0.040 |
| Sulfur | 0.030 |
| Aluminum | 0.15 |
| Titanium | 0.20 +4(C+N) min |
| Property | 439 |
| Yield Strength, min. (ksi) | 30 |
| Tensile Strength, min. (ksi) | 60 |
| Elongation, min. (%) | 22 |
| Hardness, max. (Rb) | 89 |
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We ensures top quality stainless steel 439 tubing through rigorous testing and certification programs. Each device undergoes extensive scrutiny, including mechanical and chemical analysis, to meet industry standards. Certified by the relevant authorities, Merih stainless offers durability, corrosion resistance and performance for a variety of applications in various fields.
This tubing is manufactured without any seams or welds, ensuring a uniform structure and high strength. It is available in a range of sizes, typically from 1/8 inch to 4 inches in diameter. Known for its excellent corrosion resistance and durability in high-temperature applications.
Produced by welding flat sheets of stainless steel into a tube shape, this option is often more cost-effective than seamless tubing. It is available in sizes ranging from 1/4 inch to 8 inches in diameter. Offers good corrosion resistance and is suitable for less demanding environments.
Designed for use in heat exchangers, this tube type features enhanced thermal conductivity and resistance to thermal cycling. Commonly available in sizes from 1/2 inch to 2 inches in diameter. It provides good corrosion resistance and thermal stability.
Ideal for precise measurement and control applications, this tubing is available in small diameters, typically from 1/16 inch to 1 inch. It offers high corrosion resistance and maintains integrity under high pressure and temperature conditions.
Used in boilers for transporting steam and other fluids, these tubes are available in sizes from 1 inch to 4 inches in diameter. They are highly resistant to oxidation and corrosion at elevated temperatures.
Shaped in a U-form, these tubes are used in applications where a flexible connection is needed, often in heat exchangers. They come in sizes from 1/2 inch to 2 inches in diameter. Known for their resistance to corrosion and ability to handle thermal expansion.
This tube type is used in condensers for heat exchange processes, typically available in sizes ranging from 1/2 inch to 2 inches in diameter. It offers high resistance to corrosion and fouling in challenging environments.
Equipped with fins to enhance heat transfer efficiency, these tubes are available in various sizes, commonly from 1 inch to 3 inches in diameter. They offer good corrosion resistance and are used in applications requiring efficient heat dissipation.
This tubing is widely utilized in industries that require both heat and corrosion resistance along with mechanical reliability. It’s perfect for automotive exhaust systems, heat exchangers, boiler tubes, and furnace components. Moreover, it finds applications in power plants, chemical processing equipment, and other industrial machinery that face high temperatures and corrosive environments. The durability and resistance to scaling and thermal fatigue of Stainless Steel 439 tubing help minimize maintenance needs and extend its service life, offering efficient, reliable, and long-lasting solutions.
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