Weston Stainless, based in Midland, UK, is a trusted supplier of premium stainless steel products, serving various industries with high-quality and precision-engineered solutions. Stainless Steel 17-7 PH Tubing is a precipitation-hardening stainless steel alloy known for its excellent corrosion resistance, high strength, and durability. Manufactured in round, square, and rectangular shapes, these tubes are widely used in aerospace, chemical processing, and marine applications. The 17-7 PH grade, composed of chromium, nickel, and aluminum, offers superior mechanical properties, making it suitable for high-stress and high-temperature environments where reliability and long-term performance are essential.
Stainless Steel 17-7 PH Tubing contains 16-18% Chromium, 6.5-7.75% Nickel, 1-1.5% Aluminum, 1% Manganese, 1% Silicon, 0.09% Carbon, 0.04% Phosphorus, and 0.03% Sulfur. It provides tensile strength up to 1310 MPa, yield strength of 1035 MPa, and elongation of 6-10%, offering superior toughness and hardness. Physical characteristics consist of a density of 7.8 g/cm³, a melting point around 1400°C, and a thermal conductivity of 16 W/m·K. Due to its superior fatigue strength and corrosion resistance, it is best suited for extreme applications.
| Tensile Strength | 1100 MPa (160,000 psi) minimum |
| Yield Strength | 1035 MPa (150,000 psi) minimum |
| Elongation | 20% minimum |
| Hardness | HRC 40-47 (in Condition TH1050) |
| Element | Min | Max |
|---|---|---|
| Cr | 16 | 18 |
| Ni | 6.5 | 7.75 |
| Al | 0.75 | 1.5 |
| Mn | – | 1 |
| Si | – | 1 |
| C | – | 0.09 |
| P | – | 0.04 |
| S | – | 0.03 |
| Fe | Balance | |
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Stainless Steel 17-7 PH tubing finds extensive use in aerospace, automotive, chemical, and marine sectors owing to its strength, corrosion resistance, and superior fatigue characteristics. The material is specifically suitable for use in aircraft components, landing gears, and structure parts in aeronautical usage. In chemical industries, Stainless Steel 17-7 PH tubing is applied to process equipment, heat exchangers, and pressure vessels. The tubing is also used in marine conditions, medical equipment, and precision springs, where reliability under harsh conditions is of importance. It is also used in power plants and food
High strength and moderate corrosion resistance. Available in sizes ranging from 0.25″ to 2″ OD, it is ideal for aerospace and chemical processing applications. Its seamless construction ensures uniformity and integrity under pressure.
Excellent formability and corrosion resistance. Sizes range from 0.5″ to 4″ OD, suitable for structural and mechanical uses. The welded seams are treated to enhance durability and prevent corrosion
Designed for high-temperature environments, offering excellent corrosion resistance. Available in sizes from 0.5″ to 3″ OD, these tubes are crucial for efficient heat transfer in industrial processes. They are often used in power generation and petrochemical industries.
Ensures precision and high corrosion resistance. Typically available in sizes from 0.125″ to 1″ OD, it is perfect for sensitive instrumentation and control systems. Its stability under varying pressures makes it ideal for critical applications.
Built to withstand high pressures and temperatures, with excellent corrosion resistance. Sizes range from 0.5″ to 5″ OD, making them suitable for power plants and industrial boilers. They ensure long-lasting performance under extreme conditions.
Great strength and corrosion resistance, ideal for heat exchangers and condensers. Available in sizes from 0.5″ to 2.5″ OD, these U-shaped tubes facilitate efficient thermal transfer. Their design allows for effective use in compact spaces
Corrosion-resistant and highly durable, ideal for condensing heat in various systems. Sizes range from 0.5″ to 3″ OD, used extensively in HVAC and refrigeration industries. These tubes ensure efficient and reliable performance.
Enhance heat transfer efficiency while providing excellent corrosion resistance. Available in sizes from 0.5″ to 3″ OD with various fin configurations, they are used in heat exchangers and cooling applications. The fins increase the surface area for better thermal performance.
Stainless Steel 17-7 PH Tubing is provided with Mill Test Certificates (MTC) in accordance with EN 10204/3.1, third-party inspection certificates, and material traceability reports to guarantee quality conformity. Packing involves safe wooden crates, bubble wrap, and plastic coverings to avoid damage during transportation. Delivery is coordinated through air, sea, or road transport to ensure timely and safe delivery to domestic and overseas customers while upholding product integrity.
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