Home > Stainless Steel > Stainless Steel 321 and 321H Seamless Pipes
Based in Manila, Philippines, Corazon Pipes and Tubes has established itself as a trusted partner for industries requiring precision-engineered metal solutions. We specialize in providing high-quality Stainless Steel 321/321H seamless pipes, offering a reliable supply for demanding applications. We understand that the integrity of your systems depends on the materials you use, which is why we focus on delivering products that combine superior craftsmanship with consistent performance, directly supporting the growth and efficiency of projects both locally and across international markets.
The strength of our 321/321H pipes comes from their specific composition. They are stabilized with titanium, which provides exceptional resistance against sensitization and intergranular corrosion, particularly following exposure to high temperatures. This alloy maintains excellent mechanical properties, including good tensile strength and enhanced creep resistance, making it a robust choice where both durability and thermal stability are non-negotiable for long-term performance and safety.
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 Corazon 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, Corazon offers customized solutions and technical support. In addition, the rugged design reduces leakage, making it reliable for a variety of applications.
Corazon Pipes and Tubes, one of the largest suppliers of Stainless Steel 321 and 321H Seamless Pipes in Manila, Philippines, 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 Corazon Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@corazonpipes.com.
You’ll find Stainless Steel 321 and 321H Seamless Pipes in a variety of applications, including boilers, heat exchangers, pressure vessels, and piping systems that operate under high temperatures. They’re also essential in petrochemical and chemical plants, oil & gas facilities, and power generation units that require corrosion-resistant and heat-resistant piping solutions. Plus, they’re perfect for furnace components, industrial ovens, and high-temperature process piping where long-term strength and reliability are crucial. Their blend of mechanical strength and durability makes them a go-to choice for demanding environments.
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