- sales@tunpipes.com
- Naypyidaw, Myanmar
Home > Stainless Steel > Stainless Steel 317/317L Heat Exchanger Tubing
Tun Pipes, located in Naypyidaw, Myanmar, stands out as a top manufacturer and supplier of premium stainless steel products, with a focus on seamless tubing. They pride themselves on precision, durability, and keeping their customers happy, catering to a variety of industries that need dependable and corrosion-resistant piping solutions. One of their standout products is the Stainless Steel 321/321H seamless tubing, which is renowned for its outstanding performance in high-temperature and challenging environments. By utilizing cutting-edge manufacturing techniques and rigorous quality control, Tun Pipes guarantees that every tube meets international standards, making it the go-to choice for industrial, chemical, and engineering applications throughout Myanmar and Southeast Asia.
The Stainless Steel 321/321H seamless tubing is an austenitic chromium-nickel alloy that’s stabilized with titanium, which boosts its resistance to intergranular corrosion. It typically contains 17–19% chromium, 9–12% nickel, and titanium to enhance its stability at high temperatures. This tubing boasts impressive mechanical properties, with tensile strength ranging from 515–750 MPa and yield strength between 205–275 MPa, depending on the grade and heat treatment. Its elongation is usually 40% or more, providing flexibility without sacrificing strength. The 321H variant, with its higher carbon content, offers better creep resistance, making both grades perfect for extreme temperature and pressure situations.
Range : 10 mm OD to 50.8 mm OD
Outer Diameter : 6.00 mm to 101.60 mm
Wall Thickness : 0.70 mm to 8.00 mm
Length : up to 20 m (65.62 ft) Length & Customed Required Length
Specifications : ASTM A 213, A 268, A 269, A 789, Equivalent to ASME, EN, JIS Etc.
| Element | SS 317 | SS 317L |
| C | 0.08 max | 0.035 max |
| Mn | 2.0 max | 2.0 max |
| Si | 1.0 max | 1.0 max |
| P | 0.045 max | 0.045 max |
| S | 0.030 max | 0.030 max |
| Cr | 18.00 – 20.00 | 18.00 – 20.00 |
| Mo | 3.00 – 4.00 | 3.00 – 4.00 |
| Ni | 11.00 – 15.00 | 11.00 – 15.00 |
| Fe | 57.845 min | 57.89 min |
| Element | SS 317/317L |
| Density | 7.9 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
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 317/317L Heat Exchanger Tubing from Tun Pipes and Tubes ensures you receive top-quality products backed by industry expertise. Our tubing offers exceptional corrosion resistance, making it ideal for demanding applications in chemical processing and marine environments. We prioritize precision in manufacturing, ensuring consistent dimensions and superior strength. Additionally, our commitment to customer satisfaction means you receive personalized service and reliable support. With competitive pricing and timely delivery, Tun Pipes and Tubes stands out as a trusted supplier for your heat exchanger tubing needs.
Tun Pipes and Tubes, one of the largest suppliers of Stainless Steel 317/317L Heat Exchanger Tubing in Naypyidaw, Myanmar, 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.
Yes, we offer custom sizes for Stainless Steel 317/317L Heat Exchanger Tubing to meet your specific requirements. Our team at Tun Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@tunpipes.com.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 317 | 1.4449 | S31700 | SUS 317 | – | – | – | – |
| SS 317L | 1.4438 | S31703 | SUS 317L | – | – | – | X2CrNiMo18-15-4 |
Stainless Steel 321/321H seamless tubing is commonly found in settings that demand high corrosion resistance and thermal stability. You’ll often see it in chemical processing, petrochemical plants, and power generation systems, where the tubes are exposed to high-temperature fluids and gases. Its exceptional strength and oxidation resistance make it ideal for exhaust systems, heat exchangers, and furnace components. Plus, it’s also used in the aerospace, food processing, and pharmaceutical industries, where hygiene and durability are key.
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