Chanchai Stainless, a reputable manufacturer and supplier based in Bangkok, Thailand, specializes in high-quality Stainless Steel 321 Tubing tailored for top-notch performance. This titanium-stabilized austenitic stainless steel tubing is known for its remarkable resistance to intergranular corrosion after welding, making it a reliable choice for high-temperature environments. With the ability to handle continuous service at temperatures reaching up to 900°C, Stainless Steel 321 Tubing combines durability with thermal stability. Thanks to cutting-edge manufacturing facilities and rigorous quality controls, Chanchai Stainless provides tubing that meets international standards, catering to industries like petrochemical, chemical, food processing, and power generation with dependable and long-lasting stainless steel solutions.
Stainless Steel 321 Tubing is made up of 17–19% chromium, 9–12% nickel, and titanium for stabilization, which helps prevent carbide precipitation and intergranular corrosion during welding and heat exposure. On the mechanical side, it boasts a tensile strength of around 515 MPa and a yield strength of 205 MPa, along with excellent resistance to creep and stress-rupture at high temperatures. The tubing maintains its toughness, hardness, and oxidation resistance even under prolonged thermal conditions. Its titanium-stabilized structure ensures both durability and weldability, making Stainless Steel 321 Tubing perfect for demanding industrial applications that require resistance to corrosion and high-temperature stress.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
321 |
min.
max |
–
0.08 |
2.00 |
0.75 |
0.045 |
0.030 |
17.0
19.0 |
– |
9.0
12.0 |
0.10 |
Ti=5(C+N)
0.70 |
|
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
|---|---|---|---|---|---|
|
Rockwell B (HR B) max |
Brinell (HB) max |
||||
|
321 |
515 |
205 |
40 |
95 |
217 |
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We provides highest quality standards for Stainless Steel 321 Tubing through processes of testing and certification. The products are checked with advanced tests for durability, corrosion resistance, and dimensional accuracy. Our tubing is certified internationally according to standards such as ASTM and ISO for reliability, performance, and the specific requirements of the industry.
Stainless Steel 321 seamless tubing resists oxidation and corrosion at high temperatures, offering excellent stability and durability. It’s ideal for aerospace, chemical, and high-temperature applications due to its strength and resistance.
Stainless Steel 321 welded tubing provides excellent resistance to high temperatures and corrosion, ideal for aerospace and chemical applications. It offers good weldability and stability, ensuring durability in demanding environments.
Stainless Steel 321 heat exchanger tubes offer superior resistance to high temperatures and corrosion, making them ideal for heat exchange applications in aggressive environments. They ensure durability and efficient thermal performance.
Stainless Steel 321 instrumentation tubing provides excellent resistance to high temperatures and corrosion, ensuring reliable performance in precise measurement and control systems. Its stability and strength make it ideal for critical applications.
Stainless Steel 321 boiler tubes offer high resistance to oxidation and corrosion at elevated temperatures, making them ideal for boiler systems. Their durability and strength ensure efficient heat transfer and long service life.
Stainless Steel 321 U-tubes provide excellent high-temperature resistance and corrosion protection, making them ideal for heat exchangers and condensers. Their durability and flexibility ensure reliable performance in challenging environments.
Stainless Steel 321 Tubing finds its place in various industries that demand strength and stability in harsh, corrosive environments. It’s commonly used in boilers, superheaters, heat exchangers, and condensers that operate at elevated temperatures. In the petrochemical and refinery sectors, it serves as reactor tubes, furnace components, and parts of catalytic systems. Power generation facilities utilize it in steam piping and turbine systems, showcasing its versatility and reliability across multiple applications.
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