Weston Stainless, located in Midland, UK, is a trusted supplier of high-quality stainless steel products, offering a wide range of materials and services to industries globally. Known for reliability and exceptional service, they provide stainless steel solutions that meet international standards. Stainless Steel 309S Pipes are made from an alloy containing 22-24% chromium and 12-15% nickel, offering excellent resistance to high temperatures and corrosion. These pipes are commonly available in round, square, and rectangular shapes, ideal for applications in industries such as petrochemical, power generation, and heat exchangers.
Stainless Steel 309S Pipes are composed of 22-24% chromium, 12-15% nickel, with small amounts of manganese, silicon, and carbon. The mechanical properties include a tensile strength of around 515 MPa, yield strength of 205 MPa, and an elongation of 40%. The Brinell hardness is approximately 201 HB. Physically, these pipes have a density of 7.9 g/cm³, a melting point ranging from 1400-1450°C, and thermal conductivity of 15.1 W/m·K. Their excellent resistance to high temperatures, oxidation, and corrosion makes them ideal for harsh industrial environments.
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Dimensions |
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ASTM, ASME and API |
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Standard |
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ASTM A312 / ASME SA312 |
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Size |
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1/8″NB TO 30″NB IN |
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Specialized in |
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Large Diameter Size |
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Schedule |
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SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
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Form |
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Round, Square, Rectangular, Hydraulic Etc |
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Type |
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Seamless / ERW / Welded / Fabricated / LSAW Pipes |
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Length |
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Single Random, Double Random & Cut Length. |
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End |
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Plain End, Beveled End, Threaded |
| Grade | 309S | |
|---|---|---|
| min | max | |
| C | – | 0.08 |
| Mn | – | 2.0 |
| Si | – | 0.75 |
| P | – | 0.045 |
| S | – | 0.03 |
| Cr | 16.0 | 18.0 |
| Mo | 2.0 | 3.0 |
| Ni | 10.0 | 14.0 |
| N | – | 0.10 |
| Grade | 309S | |
|---|---|---|
| Tensile Strength (MPa) min | 515 | |
| Yield Strength 0.2% Proof (MPa) min | 205 | |
| Elongation (% in 50mm) min | 40 | |
| Hardness | Rockwell B (HR B) max | 95 |
| Rockwell B (HR B) max | 217 | |
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Stainless Steel 309S Pipes are widely used in high-temperature applications due to their excellent resistance to oxidation and corrosion. They are commonly found in industries such as petrochemical, power generation, and chemical processing, where they are used in heat exchangers, boilers, furnaces, and exhaust systems. These pipes are also ideal for applications in gas turbines, industrial machinery, and food processing equipment. Their ability to withstand extreme temperatures and corrosive environments makes them essential for demanding industries that require durable and reliable piping solutions.
High-temperature resistant, corrosion-resistant tubes with a square cross-section. They are used in structural and industrial applications requiring durability and strength under extreme conditions.
High-temperature resistant, corrosion-resistant tubes with no weld seams. Ideal for demanding environments, they offer durability and strength in applications like aerospace, power generation, and chemical processing.
High-temperature resistant tubes created by welding. They offer durability and corrosion resistance, suitable for structural and industrial applications under extreme conditions.
High-strength tubes with excellent high-temperature and corrosion resistance, used in large-diameter applications like pipelines and heavy-duty structural projects.
High-temperature resistant, corrosion-resistant tubes with a circular cross-section. They are used in various applications, including industrial, structural, and high-heat environments, offering durability and strength.
High-temperature resistant tubes created by welding stainless steel strips. They offer excellent corrosion resistance and durability, suitable for applications requiring strength and performance under extreme conditions.
Stainless Steel 309S Pipes are supplied with comprehensive test certificates, including Mill Test Certificates (MTC), material certificates, and third-party inspection reports to ensure compliance with industry standards. They are securely packaged in protective materials such as wooden crates, coils, or plastic wraps to prevent damage during transit. Delivery is prompt and efficient, with shipping options available via air, sea, or road, ensuring safe and timely delivery to global destinations while maintaining product integrity throughout the process.
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