Njabulo Stainless is a reputable manufacturer and supplier of Stainless Steel 347H Pipes, proudly based in Cape Town, South Africa. This company focuses on crafting top-notch austenitic stainless steel pipes that are built to excel in high-temperature and corrosive settings. The Stainless Steel 347H Pipes from Njabulo Stainless are enhanced with niobium, which gives them remarkable resistance to intergranular corrosion and outstanding thermal stability. With state-of-the-art manufacturing facilities and rigorous quality control measures, they cater to various industries, including power generation, chemical processing, petrochemical, and aerospace, providing dependable and long-lasting piping solutions for essential high-temperature applications.
| International Specification | ASTM A312/ ASME SA 312 TP 347H |
| Seamless Pipes Size |
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| Welded Pipe Size |
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| EFW Pipe Size |
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| Wall Thickness | Schedule 5, Schedule 40, Schedule10, Schedule 80, Schedule 160, Schedule 80S, Schedule XXS, Schedule XS |
| techniques | EFW/ Seamless / ERW / Welded / LSAW/ Fabricated / Seam-Welded / CDW/ Redrawn |
| Form | Round, Square, Rectangular |
| Length | Double Random & Required Length End, Single Random, Plain End, Treaded, Beveled End |
| Condition | Hot Finished, Annealed and Pickled, Bright Annealed, Polished, Cold Drawn |
| Stainless Steel | Nickel | Magnesium | Silicon | sulfur | Carbon | Chromium | Phosphorus | Molybdenum | Nitrogen | |
| 347H | Minimum | 9 | 00.04 | 17 | 3 | |||||
| Maximum | 13 | 2 | 1 | 00.030 | 00.10 | 19 | 00.045 | 4 | ||
| SS Grade | Tensile Strength | Yield Strength | Elongation | Hardness | |
| Rockwell B | Brinell | ||||
| SS 347H | 515 | 205 | 40 | 92 | 201 |
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These Stainless Steel 347H Pipes mainly consist of iron, chromium (17–19%), nickel (9–13%), niobium (as a stabilizing element), along with trace amounts of carbon (0.04–0.10%), manganese, and silicon. The niobium stabilization effectively prevents carbide precipitation during welding and high-temperature use, ensuring excellent resistance to intergranular corrosion. These pipes boast a tensile strength of about 515–750 MPa, a yield strength of around 205–310 MPa, and impressive elongation and toughness. Stainless Steel 347H is known for its superior creep resistance, oxidation resistance, and dimensional stability even when exposed to high temperatures for extended periods.
Stainless Steel 347H Square Pipes provide excellent corrosion resistance and are ideal for structural applications. They typically come in sizes ranging from 1 inch to 6 inches, offering a high-strength option for various industrial and architectural needs.
SS 347H Seamless Pipes are known for their superior corrosion resistance and are suitable for high-temperature applications. They are available in sizes from 1/2 inch to 12 inches in diameter, ensuring durability under stress and high pressure.
Stainless Steel 347H ERW Pipes offer good corrosion resistance and are produced using electric resistance welding. They come in 1 inch to 24 inches, making them suitable for fluid transportation and structural support.
SS 347H LSAW Pipes feature excellent corrosion resistance and are used for high-pressure applications. Available in sizes ranging from 6 to 60 inches in diameter, they are ideal for large-scale industrial projects.
Stainless Steel 347H Round Pipes provide robust corrosion resistance and are versatile for various applications. Commonly available in sizes from 1/2 inch to 12 inches in diameter, they are suitable for both commercial and industrial uses.
Stainless Steel 347H Welded Pipes offer strong corrosion resistance and are manufactured by welding flat plates into cylindrical shapes. They are available in sizes from 1 inch to 24 inches and are suitable for a wide range of applications, including piping systems and structural components.
Njabulo Stainless is a leading supplier, and stockist of high-quality Stainless Steel 347H Pipes in Cape Town, South Africa. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
Stainless Steel 347H Pipes find extensive use in industries that demand high-temperature corrosion resistance and long-lasting mechanical stability. They are perfect for applications like boiler tubes, superheaters, reheaters, heat exchangers, and furnace components. In the petrochemical and chemical sectors, these pipes are utilized in process piping that comes into contact with hot corrosive fluids and gases. Moreover, they are essential in power plants, aerospace, and industrial equipment that operate under high temperatures. The unique combination of thermal stability, corrosion resistance, and mechanical strength makes 347H pipes the go-to choice for critical high-temperature and high-performance applications.
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