Nakamura Stainless is a reputable manufacturer and supplier based in Pulau Ujong, Singapore, known for delivering top-notch stainless steel products that are built to last and perform exceptionally well. One of their standout offerings is the Stainless Steel 439 Tubing, which is highly regarded for its impressive corrosion resistance, strength at high temperatures, and overall mechanical stability. This ferritic stainless steel tubing is designed to perform reliably in tough environments, making it a perfect fit for applications in the automotive, chemical, and power generation sectors. With a commitment to international standards, Nakamura Stainless guarantees that their Stainless Steel 439 Tubing will provide long-lasting service, maintain dimensional stability, and uphold consistent quality across a variety of industrial uses.
The Stainless Steel 439 Tubing is made from ferritic stainless steel, containing 17–19% chromium along with small amounts of titanium and molybdenum to boost its corrosion resistance, thermal stability, and mechanical strength. It strikes a balance between good tensile and yield strength while also being tough and resistant to scaling at high temperatures. Thanks to its ferritic structure, it boasts low thermal expansion, dimensional stability, and resistance to stress corrosion cracking, making it an excellent choice for piping and structural applications in moderately corrosive and high-temperature 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, Nakamura 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 need piping solutions that can withstand corrosion and heat. It’s commonly found in automotive exhaust systems, heat exchangers, boilers, and furnace components due to its outstanding resistance to oxidation and scaling. Chemical processing plants, power generation facilities, and food processing industries also depend on it for safe and reliable fluid transport in high-temperature conditions. With its blend of strength, durability, and corrosion resistance, Stainless Steel 439 Tubing ensures dependable performance in critical industrial and engineering applications.







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