Weston Stainless, a Midland, UK-based company, is a well-known supplier of high-quality stainless steel products to numerous industrial applications with premium materials. Their Stainless Steel 347 Pipes are produced from columbium-stabilized austenitic stainless steel, exhibiting superior resistance to intergranular corrosion and oxidation at elevated temperatures. These pipes are offered in seamless, welded, and fabricated types, produced under ASTM A312, A358, and A376 specifications. Having better strength, weldability, and longevity, SS 347 pipes are perfectly suited for high-temperature applications, providing superior performance in situations where the pipes are exposed to heat and corrosive conditions for a long time.
SS 347 Pipes have 17-19% chromium, 9-13% nickel, and columbium (niobium), which avoids the precipitation of carbides at high temperatures. The mechanical properties are a tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of 40%, providing outstanding strength and ductility. Their physical properties are a density of 7.9 g/cm³, a melting point of around 1400°C, and a thermal conductivity of 16.3 W/m-K, which makes them ideal for high-temperature applications where outstanding stability and corrosion resistance are needed.
| Standard | ASTM A312, A358 / ASME SA312, SA358 |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated Pipes |
| Form | Round, Square, Rectangular, Oval, Hydraulic Etc |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 347 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.845 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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Stainless Steel 347 Pipes find extensive applications in petrochemical, power generation, oil & gas, and chemical processing plants because of their high resistance to oxidation and stress corrosion cracking. These pipes are specifically suitable for equipment at high temperatures like heat exchangers, furnace parts, boiler tubes, and superheater tubes. They are also used in aerospace, food industry, and pharmaceutical uses where high strength, toughness, and corrosion resistance are required. Their thermal cycling capacity makes them an ideal choice for high-usage industrial conditions.
A high-quality, stainless steel pipe made from alloy 347. It offers excellent resistance to high temperatures and corrosion, suitable for aerospace, chemical, and industrial applications.
Excellent resistance to corrosion and high temperatures. Ideal for applications in aerospace, chemical processing, and industrial settings.
Good resistance to corrosion and high temperatures, suitable for various industrial applications.
Superior resistance to high temperatures and corrosion. It’s ideal for demanding applications in industries like aerospace and chemical processing.
Excellent resistance to high temperatures and corrosion. It’s used in structural and industrial applications requiring strength and durability.
Robust resistance to high temperatures and corrosion. Ideal for structural and industrial applications requiring strength and durability.
Weston Stainless offers Mill Test Certificates (MTC) according to EN 10204 3.1 to guarantee quality consistency. The tubes are tightly wrapped in wooden cases, plastic lids, or coated in protective wraps to ensure safety during transportation. With an organized worldwide supply system, Weston Stainless delivers with utmost efficiency, on time and safely, and keeps pace with the demands of industry with precision and perfection.
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