Lecong Stainless is a reputable manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 309S Tubing designed for tough, high-temperature, and corrosive environments. This tubing is celebrated for its outstanding resistance to oxidation and thermal fatigue, making it perfect for applications that demand long-lasting durability even in extreme heat. With meticulous manufacturing processes and a strong commitment to international quality standards, Lecong Stainless delivers Stainless Steel 309S Tubing that boasts superior mechanical strength, precise dimensions, and reliable performance. Thanks to its high chromium and nickel content, this tubing is a go-to choice for demanding industrial applications, both in Vietnam and around the world.
Stainless Steel 309S Tubing contains 23–25% chromium and 12–14% nickel, along with very low carbon content to enhance weldability and minimize carbide precipitation. The careful inclusion of manganese, silicon, and iron improves toughness and workability. This tubing showcases a tensile strength of approximately 515 MPa, a yield strength of about 205 MPa, and an elongation of 40%. Its exceptional oxidation resistance allows it to perform at temperatures up to 1900°F (1038°C), while maintaining its structural integrity during thermal cycling and in corrosive environments, making it an excellent choice for high-temperature piping applications.
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Outer Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Form | Round Tubes, Square Tubes, Rectangular Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded. |
| ELEMENT | SS 309S |
| NI | 12.0 – 15.0 |
| C | 0.08 max |
| MN | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| SI | 1.0 max |
| CR | 22.0 – 24.0 |
| MO | 0.75 max |
| Condition & Grade | Tensile Strength | Yeild Strength | Elognation | Hardness |
|---|---|---|---|---|
| SS 309S | 75 (515) | 30 (205) | 35 | 90 HRB max |
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We ensures the highest quality stainless steel 309S tubing through rigorous testing procedures including mechanical, chemical and theoretical testing. Compliance with international standards is demonstrated by industry-standard documentation, such as material test certificates (MTCs). These certifications attest to the durability, strength and performance of the pipe.
Stainless Steel 309s Seamless Tubing is known for its high resistance to oxidation and excellent mechanical properties. It typically comes in diameters ranging from 1/8 inch to 12 inches, with wall thicknesses of 0.5 mm to 10 mm. It offers superior corrosion resistance in high-temperature applications.
Stainless Steel 309s Welded Tubing is ideal for applications requiring good oxidation resistance and strength. It is available in sizes from 1/4 inch to 10 inches in diameter and wall thicknesses from 0.5 mm to 8 mm. This tubing is well-suited for high-temperature environments due to its excellent corrosion resistance.
Stainless Steel 309s Heat Exchanger Tube is designed to handle extreme temperatures and corrosive environments. Common sizes range from 1/2 inch to 3 inches in diameter, with wall thicknesses of 1 mm to 5 mm. It provides excellent thermal conductivity and resistance to oxidation.
Stainless Steel 309s Instrumentation Tubing is used for precise measurement and control applications. It is available in sizes from 1/8 inch to 2 inches in diameter and wall thicknesses from 0.5 mm to 3 mm. This tubing offers strong resistance to high temperatures and corrosive environments.
Stainless Steel 309s Boiler Tubes are engineered for use in high-pressure and high-temperature environments within boilers. Typical sizes are from 1/2 inch to 4 inches in diameter, with wall thicknesses of 1 mm to 8 mm. They exhibit excellent resistance to thermal cycling and oxidation.
Stainless Steel 309s U-Tubes are used in heat exchangers and other applications requiring bending and high thermal resistance. Sizes generally range from 1/2 inch to 2 inches in diameter. They are highly resistant to thermal stress and corrosion.
Stainless Steel 309s Condenser Tube is designed for use in condenser systems where high heat resistance is critical. It comes in sizes from 1/2 inch to 3 inches in diameter and wall thicknesses from 0.5 mm to 4 mm. It provides excellent durability and resistance to corrosion and heat.
Stainless Steel 309s Fin Tubes are used in applications where enhanced heat transfer is needed, such as in heat exchangers and radiators. Typical sizes are from 1/2 inch to 2 inches in diameter, with various fin lengths and thicknesses. They offer good resistance to oxidation and high temperatures.
You’ll find Stainless Steel 309S Tubing widely utilized in industries such as chemical processing, petrochemical, power generation, and furnace manufacturing. It’s perfect for superheaters, heat exchangers, boiler components, exhaust systems, and high-temperature piping. In aerospace and marine settings, it offers long-lasting durability under thermal stress and in corrosive atmospheres. This tubing is also essential in refineries, kilns, and industrial furnaces where resistance to oxidation, scaling, and thermal fatigue is crucial. With its exceptional heat and corrosion resistance, Stainless Steel 309S Tubing stands out as a dependable solution for challenging industrial and engineering needs.















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