Home > Stainless Steel > Stainless Steel 321 Ball Valve
Ayhan Tube Fittings, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of Stainless Steel 321 Ball Valves, delivering dependable and long-lasting solutions for precise flow control in industrial piping systems. These valves are specifically designed to thrive in high-temperature and corrosive environments, ensuring leak-proof performance and an extended service life. Adhering to international standards and undergoing thorough quality inspections, Ayhan Tube Fittings guarantees that each valve meets the stringent demands of industries like oil and gas, chemical processing, petrochemical, marine, and power generation. With a commitment to timely delivery, competitive pricing, and a customer-centric approach, the company has earned a reputation for excellence in specialty valve manufacturing.
Constructed from SS 321, an austenitic stainless steel alloy that’s stabilized with titanium, Stainless Steel 321 Ball Valves boast remarkable resistance to intergranular corrosion, high-temperature oxidation, and stress corrosion cracking. On a mechanical level, these valves provide outstanding tensile and yield strength, along with durability and toughness, even under high-pressure and elevated temperature conditions. The precision-engineered ball and seat designs ensure smooth operation, tight sealing, and minimal maintenance, making these valves ideal for critical and demanding industrial applications.
|
Grade |
Mn |
Si |
C |
S |
Ni |
N |
Other |
P |
Cr |
Mo |
||
|
321 |
minimum.
maximum |
2.00 |
0.75 |
–
0.08 |
0.030 |
9.0
12.0 |
0.10 |
Ti=5(C+N)
0.70 |
0.045 |
17.0
19.0 |
– |
|
|
321H |
minimum.
maximum |
2.00 |
0.75 |
0.04
0.10 |
0.030 |
9.0
12.0 |
– |
Ti=4(C+N)
0.70 |
0.045 |
17.0
19.0 |
– |
|
SS Grade | (% in 50mm) Elongation minimum | 0.2% Proof Yield Strength (MPa) minimum | Strength of Tensile (MPa) minimum | Plate Hardness | |
Brinell (HB) maximum | Rockwell B (HR B) maximum | ||||
321 | 40 | 205 | 515 | 217 | 95 |
321H | 40 | 205 | 515 | 217 | 95 |
Grade | British | Euronorm | UNS No. | SS | JIS | |||
European Standards | British Standards | DIN No | Name | |||||
321 | 58B, 58C | 321S31 | 1.4541 | X6CrNiTi18-10 | S32100 | 2337 | SUS 321 | |
321H | – | 321S51 | 1.4878 | X10CrNiTi18-10 | S32109 | – | SUS 321H | |
You’ll find Stainless Steel 321 Ball Valves widely utilized in industries that demand high-temperature resistance and corrosion protection. In oil and gas facilities, they’re essential for pipelines, refineries, and offshore platforms that face heat and corrosive fluids. The chemical and petrochemical sectors rely on them for managing aggressive media and high-pressure systems. Marine, power generation, and water treatment facilities trust their durability and reliable performance, even in challenging conditions. Plus, they’re also used in food processing and pharmaceutical applications, where safety and reliability are paramount.
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Stainless steel 321 Ball valves are widely used in applications requiring high resistance to high temperature oxidation and corrosion. It is commonly used in the petroleum, aerospace, oil and gas, and power industries. These valves are ideal for handling harsh fluids such as acids and corrosive gases due to excellent chemical resistance. The titanium stabilizer in stainless steel 321 increases durable strength under cyclic heating, making the valves suitable for high-temperature pipelines, steam services and process lines involving aggressive media They are also used in food processing and pharmaceutical industry.
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