Weston Stainless, Midland, UK, is a reliable provider of premium stainless steel products for industries that demand strong and heat-resistant materials. Among their products, Stainless Steel 309H Tubing is notable for its superior high-temperature strength and resistance to oxidation. The 309H type is an austenitic stainless steel with a higher carbon level, which increases creep resistance and mechanical properties. Made up of iron, 22-24% chromium, 12-15% nickel, and 0.04-0.10% carbon, this tubing comes in seamless, welded, and ERW forms. It finds extensive applications in heat exchangers, boilers, furnaces, and petrochemical applications due to its excellent thermal and corrosion resistance.
Stainless Steel 309H Tube is made up of iron containing 22-24% chromium, 12-15% nickel, 0.04-0.10% carbon, and small proportions of manganese, silicon, phosphorus, and sulfur, providing excellent heat and corrosion resistance. Its mechanical properties are tensile strength of 620 MPa, yield strength of 310 MPa, and elongation of 40%, with durability in high-stress conditions. The physical attributes have a density of 7.9 g/cm³, a melting point of 1350-1400°C, and thermal conductivity of 15.6 W/m·K. Such properties make 309H tubing suitable for high-temperature use in power plants, refineries, and heat treatment processes.
Tube Specifications: ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
Dimensions: ANSI B36.19, ANSI B36.10
Pipe 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
Tube Outside Diameter: 1/8″ OD TO 2″OD 3MM OD TO 38 MM OD
Thickness Range: 1MM TO 3 MM 0.028 TO 0.156 IN, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS
Type: Seamless / ERW / Welded / Capillary Tubes
Form: Round Tube, Square Tube, Rectangular Tube
Length: Single Random, Double Random & Required Length
End: Plain End, Beveled End, Treaded
End Protection: Plastic Caps
Finish: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
External Coating: 3LPE / 3LPP/ FBE/ DFBE/ PP
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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Stainless Steel 309H Tubing is extensively applied in high-pressure and high-temperature conditions because of its excellent heat resistance and mechanical properties. It is generally used in heat exchangers, boilers, furnaces, and refractory equipment and is a critical component for power generation, petrochemical, and thermal processing industries. Stainless Steel 309H Tubing is also applied in burner assemblies, exhaust systems, annealing covers, and catalytic recovery systems. Its superior oxidation resistance and durability qualify it for chemical plants, incinerators, and food processing facilities, guaranteeing consistent performance under harsh conditions where strength and corrosion resistance are paramount.
Available in sizes ranging from 1/8″ to 12″ in outer diameter, these tubes are highly corrosion-resistant. Seamless construction ensures strength and durability under high temperatures and pressures.
These tubes, with outer diameters from 1/8″ to 24″, offer excellent corrosion resistance. Welded for precise applications, they are suitable for a variety of industrial uses
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Ranging from 1/2″ to 5″ in outer diameter, these corrosion-resistant tubes can endure extreme temperatures. Essential for maintaining efficiency in boiler operations.
These tubes come in various sizes, typically up to 2″ in outer diameter, and offer excellent corrosion resistance. They are used in heat exchangers and condensers for efficient thermal management.
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Available in sizes from 1/2″ to 2″ in outer diameter, these corrosion-resistant tubes feature fins for enhanced heat transfer. Used in heat exchangers to improve efficiency and performance.
Stainless Steel 309H Tubing is supplied with test certificates such as Mill Test Certificates (MTC) EN 10204 3.1/3.2, third-party inspection certificates, and material traceability certificates to comply with quality. Transit safety is provided with secure packaging in wooden crates, bubble wraps, and pallets. Domestic and overseas deliveries are made efficiently and in a timely manner with accurate labeling, handling, and safe shipping to get the product delivered to the destination safely.
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