Harsh Metalloys is a trusted manufacturer and supplier of Stainless Steel 321 tubing, proudly based in Mumbai, India. We focus on delivering top-notch tubing solutions that excel in high-temperature and corrosive environments. Our SS 321 tubing is crafted from high-quality raw materials and cutting-edge manufacturing techniques, ensuring durability, strength, and precise dimensions. We cater to various industries, including chemical processing, aerospace, power generation, and thermal systems. Harsh Metalloys has built a reputation for timely deliveries, precision products, and unwavering quality. Our dedication to excellence has established us as a go-to supplier in India and beyond for stainless steel tubing solutions.
Stainless Steel 321 tubing is made from a titanium-stabilized austenitic stainless steel alloy, featuring about 17–19% chromium and 9–12% nickel. The addition of titanium enhances resistance to intergranular corrosion after welding. SS 321 tubing boasts impressive oxidation resistance up to 870°C, with a tensile strength of around 515 MPa and a yield strength close to 205 MPa. It offers good toughness, weldability, and thermal stability. This tubing maintains its mechanical integrity even under high-temperature service conditions and resists stress rupture and creep, making it perfect for heat-affected applications.
| 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 |
Contact us to get a quick quote for your requirement.
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.
You’ll find Stainless Steel 321 tubing widely used in high-temperature settings like heat exchangers, furnace components, thermal oxidizers, exhaust manifolds, and aerospace tubing systems. It’s particularly well-suited for the chemical and petrochemical industries, where resistance to oxidation and thermal fatigue is essential. SS 321 tubing is also a popular choice in power plants, oil refineries, and gas processing units due to its stability in thermal cycling environments. With its excellent weldability, corrosion resistance, and long-lasting strength, it’s the preferred option for systems that endure continuous thermal stress and corrosive conditions.
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