Home > Stainless Steel > Stainless Steel 309H Pipes
Bosega Pipes and Tubes is a reputable manufacturer and supplier of Stainless Steel 309H Pipes based in Cape Town, South Africa. They specialize in providing top-notch piping solutions that are engineered for exceptional high-temperature performance, corrosion resistance, and long-lasting durability. Stainless Steel 309H is a high-carbon austenitic stainless steel grade, specifically designed to endure extreme temperatures and oxidizing environments. This makes it perfect for applications like furnaces, heat exchangers, kilns, and chemical processing.
The composition of Stainless Steel 309H Pipes includes iron, chromium (23–25%), nickel (12–15%), and a higher carbon content (0.08–0.15%), along with trace amounts of manganese and silicon. The increased carbon content boosts tensile and creep strength at elevated temperatures, while the austenitic structure contributes to excellent toughness, ductility, and thermal stability. Mechanically, these pipes are known for their high tensile and yield strength, outstanding creep resistance, and remarkable dimensional stability, even when exposed to extreme temperatures and oxidizing conditions for extended periods.
| Specifications | ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790 |
| Dimensions | ASTM, ASME and API |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Wall Thickness | Sch 5s, 10s, 40s, 80s, 160, XXS |
| Size – Seamless 309H Pipes | 1/8″NB TO 30″NB IN |
| ERW 309H Pipes | 1/2″ NB – 24″ NB |
| EFW 309 Pipes | 6″ NB – 100″ NB |
| Form | Round, Square, Rectangular, Oval, Hydraulic Etc |
| Types | Seamless, ERW, Welded, Fabricated, LSAW Pipes |
| End | Plain End, Beveled End, Treaded |
| Length | Single Random, Double Random & Cut Length. |
| Grade | C | Mn | Si | P | S | Cr | Ni | Fe | |
| 309H | min. | 0.04 | – | – | – | – | 22.0 | 12.0 | 58.0 63.0 |
| max. | 0.10 | 2.0 | 0.75 | 0.045 | 0.03 | 24.0 | 15.0 | ||
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 309H | 515 | 205 | 40 | 95 | 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 309H Pipes from Bosega Pipes and Tubes offers superior thermal stability, corrosion resistance and excellent weldability. The company’s expertise assures accuracy and quality control. They offer on-time delivery, competitive pricing and exceptional customer support, making them a trusted vendor for engineering needs.
Bosega Pipes and Tubes, one of the largest suppliers of Stainless Steel 309H pipes in Cape Town, South Africa, 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 309H pipes to meet your specific requirements. Our team at Bosega Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@bosegapipes.co.za.
These pipes find extensive use in furnace components, heat exchangers, kilns, petrochemical processing equipment, and high-temperature industrial systems. They are particularly suited for power plants, chemical plants, and offshore applications where high-temperature strength, oxidation resistance, and durability are essential. With their combination of high-temperature performance, corrosion resistance, and meticulous manufacturing, Bosega’s Stainless Steel 309H Pipes offer long-lasting, low-maintenance, and dependable solutions for demanding industrial environments.
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