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Home > Stainless Steel > Stainless Steel 347/347H Heat Exchanger Tubing
Mirza Pipes and Tubes, having its headquarters in Riyadh, Saudi Arabia, is a leading manufacturer and exporter of high-strength stainless steel piping solutions. From our array of specialized items, Stainless Steel 347/347H Heat Exchanger Tubing is designed with superior performance in corrosive and high-temperature applications. Due to its thermal stability, durability, and resistance to intergranular corrosion, the tube is highly relied upon by petrochemical, power generation, chemical processing, and food industries. Supported by state-of-the-art manufacturing know-how and rigorous quality assurance, Mirza Pipes and Tubes guarantees that all products provide consistent performance, extended service life, and superior value, making us a reliable partner in industrial piping applications.
Stainless Steel 347/347H Heat Exchanger Tubbing consists of 17–19% chromium, 9–12% nickel, and niobium (10 times carbon content), which resists intergranular corrosion in the alloy. With a tensile strength of up to 620 MPa (347H) and high ductility, it provides better performance under high-temperature and high-stress conditions. The niobium addition provides improved resistance to sensitization and carbide precipitation on welding. Main benefits are resistance to oxidation at high temperatures, toughness, and resistance to stress corrosion cracking, and so it’s extremely reliable under severe operating conditions for use in heat exchangers, boilers, and pressure vessels.
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 347 | SS 347H |
| C | 0.08 max | 0.04 – 0.10 |
| 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 | 17.00 – 20.00 | 17.00 – 19.00 |
| N | 10xC – 1.10 | 8xC – 1.10 |
| Ni | 9.00 – 13.00 | 9.0 -13.0 |
| Ti | 62.74 min | 63.72 min |
| Element | SS 347 | SS 347H |
| Density | 8.0 g/cm3 | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) | 1454 °C (2650 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 | Psi – 30000 , MPa – 205 |
| Elongation | 35 % | 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 347/347H Heat Exchanger Tubing from Mirza Pipes and Tubes ensures you receive high-quality products tailored to meet your specific requirements. Our tubing offers exceptional corrosion resistance and durability, ideal for high-temperature applications. We prioritize stringent quality control measures, ensuring each product meets industry standards. Additionally, our expert team provides personalized support, timely delivery, and competitive pricing, making us a reliable partner in your projects. Trust Mirza Pipes and Tubes for your stainless steel needs and experience superior performance and service.
Mirza Pipes and Tubes, one of the largest suppliers of Stainless Steel 347/347H Heat Exchanger Tubing in Riyadh, Saudi Arabia, 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 347/347H Heat Exchanger Tubing to meet your specific requirements. Our team at Mirza Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@mirzapipes.com.
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | 08Ch18N12B | X6CrNiNb18-10 |
| SS 347H | 1.4878 | S34709 | SUS 347H | – | X6CrNiNb18-12 |
347/347H Stainless Steel Heat Exchanger Tubing is extensively used in processes requiring thermal stability and corrosion resistance. It finds usage in petrochemical and chemical processing facilities, oil and gas refineries, and power plants where it performs under severe conditions. The tubing is best suited for use in heat exchangers, boilers, pressure vessels, and piping systems at high temperatures. Its strength provides long service life and effectiveness in heat transfer operations. Its resistance to intergranular corrosion and oxidation further qualifies it for use in food processing as well as other industries demanding hygienic, high-performance tubing solutions.
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