Weston Stainless, Midland, UK, is a well-established manufacturer and supplier of high-grade stainless steel products to diverse industrial sectors. Of its high-end products, Stainless Steel 347H Pipes are popularly renowned for their high-temperature superiority and superior corrosion resistance. These pipes, seamless, welded, ERW, and fabricated types, are produced from Grade 347H stainless steel, which is an austenitic, columbium-stabilized alloy with added higher carbon content. Containing iron, chromium, nickel, and trace amounts of elements, these pipes are known for having superior strength, oxidation resistance, and longevity in harsh industrial usage.
| 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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Stainless Steel 347H Pipes are made up of iron (balance), 17-19% chromium, 9-13% nickel, 0.04-0.10% carbon, columbium, and trace amounts of elements like manganese and silicon. They have a tensile strength of about 75 ksi (515 MPa), a yield strength of 30 ksi (205 MPa), and an elongation of 40%. They have the following physical properties: density of 7.93 g/cm³, thermal conductivity of 16.3 W/m·K, and a melting point of about 1400°C. This composition provides improved mechanical strength, high thermal stability, and resistance to intergranular corrosion in high-temperature environments.
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.
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.
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.
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.
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.
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.
Stainless Steel 347H Pipes are widely utilized in industries like aerospace, chemical processing, and power generation because of their superior resistance to high-temperature oxidation and creep stress. They find widespread application in heat exchangers, furnace parts, superheater tubes, and high-pressure steam piping. Their high weldability and mechanical strength make them suitable for the transportation of fluids in petrochemical facilities, refineries, and boilers. The higher carbon content increases their strength, which is a condition for long-term exposure to elevated temperatures in harsh industrial atmospheres.
Weston Stainless offers Stainless Steel 347H Pipes along with test certificates, such as mill test reports (MTR), third-party inspection, and compliance certification. For safe transport, the pipes are wrapped in wooden crates, pallets, or protective covering to avoid any damage during transport. The firm delivers the goods on time from anywhere in the world through air, sea, or land transportation, ensuring the integrity of the product and satisfaction of the client through effective logistic solutions.
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