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Irfan Pipes and Tubes, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of **Stainless Steel 321 and 321H Seamless Pipes**. They specialize in delivering high-quality piping solutions tailored for demanding industrial needs. Thanks to their state-of-the-art manufacturing facilities and rigorous quality control, the company is known for producing seamless pipes that boast durability, reliability, and excellent corrosion resistance. The Stainless Steel 321 and 321H Seamless Pipes are particularly valued for their outstanding performance in high-temperature and oxidizing conditions. Irfan Pipes and Tubes is committed to timely deliveries and ensuring customer satisfaction, making them a go-to partner for sectors like chemical, petrochemical, power generation, and aerospace.
These seamless pipes are austenitic stainless steels, typically containing around 17–19% chromium, 9–13% nickel, and are stabilized with titanium to guard against intergranular corrosion. The 321H variant features a higher carbon content, which enhances its strength at elevated temperatures. Mechanically, these pipes showcase impressive tensile strength, remarkable toughness, and stability under thermal stress. The titanium stabilization not only boosts weldability but also enhances resistance to sensitization during heating, while the austenitic structure contributes to their ductility and formability. These characteristics ensure dependable performance in high-temperature, high-pressure, and corrosive settings.
Range : 6NB to 1200NB
Outer Diameter : 1/8″ NPS to 12″ NPS
Thickness : 0.6 mm to 12.7 mm
Schedules : SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS.
Length : Single Random, Double Random & Cut Length
Specifications : ASTM A312 / ASTM SA312
Types : Round, Square, Rectangle, Hydraulic, Honed Tubes
End : Plain End, Beveled End
STANDARD | UNS | WERKSTOFF NR. |
SS 321 | S32100 | 1.4541 |
SS 321H | S32109 | 1.4878 |
Ni | 09 – 12 | 09 – 12 |
N | 0.10 | 0.10 |
Cr | 17 – 19 | 17 – 19 |
C | 0.08 max | 0.04 – 0.08 |
Si | 1 max | 0.75 max |
Mn | 2 max | 2 max |
P | 0.040 max | 0.045 max |
S | 0.030 max | 0.03 max |
TI | 4(C+N) | 0.70 max |
Grade | 321 | 321H |
Tensile Strength (MPa) min | 515 | 515 |
Yield Strength 0.2% Proof (MPa) min | 205 | 205 |
Elongation (% in 50mm) min | 40 | 40 |
Hardness | ||
Rockwell B (HR B) max | 95 | 95 |
Brinell (HB) max | 217 | 217 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Stainless Steel 321 and 321H Seamless Pipes from Irfan Pipes and Tubes guarantees exceptional corrosion resistance and high temperature performance. Their pipes are manufactured to exacting standards, ensuring reliability and durability for complex applications. With a focus on customer service, Irfan offers customized solutions and technical support. In addition, the rugged design reduces leakage, making it reliable for a variety of applications.
Irfan Pipes and Tubes, one of the largest suppliers of Stainless Steel 321 and 321H Seamless Pipes in Istanbul, Turkey, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
321H | S32109 | 321S51 | – | 1.4878 | X6CrNiTi18-10 | – | SUS 321H |
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Yes, we offer custom sizes for Stainless Steel 321 and 321H Seamless Pipes to meet your specific requirements. Our team at Irfan Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@irfanpipes.com.
Stainless Steel 321 and 321H Seamless Pipes find extensive use in industries that demand resistance to high temperatures, oxidation, and corrosion. In chemical and petrochemical facilities, they are utilized for process piping, reactors, and heat exchangers. The power generation sector employs them in boilers, superheaters, and turbine components. Their durability and high-temperature strength make them essential in aerospace and marine applications. Additionally, these pipes are used in furnace components, exhaust systems, and various industrial equipment that face thermal stress. With their blend of mechanical strength and corrosion resistance, they are a reliable choice for many demanding applications.
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