Kyaw Stainless is a well-respected manufacturer and supplier based in Naypyidaw, Myanmar, known for its top-notch Stainless Steel 439 Tubing. This tubing is celebrated for its outstanding corrosion resistance, heat stability, and durability. Crafted with cutting-edge technology and rigorous quality standards, these tubes promise consistent performance and reliability. Kyaw Stainless is dedicated to providing products that align with international specifications, making them perfect for both industrial and structural uses. The Stainless Steel 439 Tubing excels in resisting oxidation and scaling, making it a fantastic option for high-temperature and corrosive settings where durability and strength are crucial.
The composition of Stainless Steel 439 Tubing includes iron, 17–19% chromium, titanium, along with trace amounts of carbon, silicon, and manganese. This ferritic stainless steel grade is known for its impressive corrosion resistance, especially in oxidizing environments, and it also boasts good formability and weldability. In terms of mechanical properties, it offers a tensile strength of about 450–500 MPa and a yield strength close to 275 MPa, with moderate hardness and ductility. The material remains stable even at elevated temperatures, showing strong resistance to stress corrosion and scaling.
| 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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Stainless Steel 439 Tubing is extensively utilized in various industries like automotive, petrochemical, food processing, and construction because of its superior heat and corrosion resistance. These tubes are utilized in exhaust systems, heat exchangers, fuel systems, and industrial piping where high-temperature and oxidation resistance is essential. They also get utilized in architectural cladding, flue gas systems, and kitchen equipment, providing durability and reliability for structural components subjected to harsh environments.
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.
You’ll find Stainless Steel 439 Tubing used in a variety of applications, including automotive exhaust systems, heat exchangers, power plants, and the chemical processing industry. Its ability to withstand corrosion and high-temperature oxidation makes it ideal for condensers, boilers, and furnace components. Additionally, it’s utilized in food processing equipment, architectural structures, and industrial machinery where both strength and hygiene are paramount. Kyaw Stainless is committed to ensuring that its 439 Tubing delivers exceptional performance, reliability, and superior resistance to heat and chemical exposure across a wide range of industrial applications.
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