MERIH STAINLESS, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of premium Stainless Steel 321 Tubing, specifically designed for tough industrial applications. This tubing is celebrated for its strength, resistance to corrosion, and ability to withstand high temperatures, making it a go-to choice in environments where heat and oxidizing conditions are prevalent. Thanks to titanium stabilization, it effectively prevents intergranular corrosion, ensuring it performs reliably over time. MERIH STAINLESS adheres to international standards in producing Stainless Steel 321 Tubing, delivering dependable solutions for industries like petrochemical, chemical processing, aerospace, and power generation, where safety, durability, and performance in extreme conditions are paramount.
Stainless Steel 321 Tubing is an austenitic stainless steel alloy that includes 17–19% chromium, 9–12% nickel, and titanium for stabilization. This stabilization helps avoid carbide precipitation and shields against intergranular corrosion during extended high-temperature use. On the mechanical side, the tubing boasts a tensile strength of about 515 MPa, a yield strength of 205 MPa, and impressive toughness even at elevated temperatures. It also shows good resistance to creep and stress-rupture, high oxidation resistance up to 870°C, and excellent weldability, making it ideal for piping, tubing, and heat-resistant applications in challenging environments.
| 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.
Industries that require materials capable of withstanding heat, corrosion, and oxidation frequently use Stainless Steel 321 Tubing. Typical applications include chemical and petrochemical processing plants, high-temperature piping systems, refinery equipment, and power generation units like boilers, heat exchangers, and superheaters. The aerospace and automotive sectors also rely on it for exhaust systems, manifolds, and engine components that face high temperatures. Furthermore, it finds use in furnace equipment, thermal processing systems, and in the food and pharmaceutical industries.
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