Andre Stainless is a reliable manufacturer and supplier of high-performance Stainless Steel 321 Tubing in Singapore, Pulau Ujong, providing trustworthy solutions for high-temperature and corrosion-resistant needs. SS 321 tubing is a titanium-stabilized austenitic stainless steel, perfect for applications that involve continuous or intermittent exposure to high temperatures. Andre Stainless offers 321 tubing in a variety of sizes, wall thicknesses, and finishes, all adhering to international standards like ASTM A213 and A269. With outstanding weldability and oxidation resistance, these tubes find their place in aerospace, chemical processing, heat exchangers, and thermal systems. Andre Stainless guarantees product integrity through rigorous quality checks and dependable logistics.
Stainless Steel 321 Tubing is made up of about 17–19% chromium, 9–12% nickel, and is stabilized with titanium (at least five times the carbon content) to combat intergranular corrosion. This alloy boasts a tensile strength of ≥515 MPa, yield strength of ≥205 MPa, and impressive elongation (~40%). It retains its strength and corrosion resistance at temperatures up to 870°C and is non-magnetic when annealed. The addition of titanium helps prevent carbide precipitation during welding or extended heat exposure, making SS 321 tubing an excellent choice for high-temperature applications while ensuring mechanical stability over time.
| 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 is commonly utilized in situations that demand exceptional strength, oxidation resistance, and stability at high temperatures. Typical applications include exhaust systems, heat exchangers, furnace components, thermal oxidizers, and aircraft manifolds. It’s particularly well-suited for environments where temperatures vary and resistance to intergranular corrosion is crucial after welding. SS 321 tubing is extensively used in sectors like chemical processing, oil and gas, aerospace, refineries, and pharmaceuticals.
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