Weston Stainless, Midland, UK, is a reliable supplier of high-quality stainless steel products, offering precision–designed and high–quality solutions for numerous industries. Stainless Steel 17-7 PH Fasteners are produced from a precipitation-hardening chromium-nickel-aluminum alloy material, providing superior strength, corrosion resistance, and excellent fatigue properties. The fasteners can be supplied in different shapes such as bolts, nuts, screws, washers, and studs and are best suited for aerospace, automotive, marine, and industrial sectors. The 17-7 PH grade offers high hardness, superior wear resistance, and good formability, guaranteeing consistent performance in harsh environments where high strength and durability are required.
| Property | 17-7 PH |
| Density, lb/in3 | 0.282 |
| Modulus of Elasticity, psi | 29 x 106 |
| Coefficient of Thermal Expansion, 68-212˚F, /˚F | 8.5 x 10-6 |
| Thermal Conductivity, Btu/ft hr ˚F | 9.5 |
| Specific Heat, Btu/lb ˚F | 0.11 |
| Electrical Resistivity, Microohm-in | 31.5 |
| Element | 17-7PH |
| Carbon | 0.09 |
| Chromium | 16.0-18.0 |
| Nickel | 6.5-7.7 |
| Manganese | 1.00 |
| Silicon | 1.00 |
| Aluminum | 0.75-1.50 |
| Phosphorus | 0.040 |
| Sulfur | 0.030 |
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Corrosion-resistant and durable, these nuts are commonly used in aerospace and industrial applications. They typically come in sizes ranging from M2 to M48 and can be used with various bolt sizes, providing strong clamping force and resistance to wear.
Excellent corrosion resistance and high strength. Available in sizes from M6 to M30, they are used for applications requiring precise alignment and robust mechanical properties. The 17-7 PH alloy ensures durability under stress and high temperatures.
Superior corrosion resistance and high tensile strength, making them perfect for demanding environments. Available in sizes from M4 to M36 and various lengths, they are ideal for aerospace and structural applications. Their hardness and resistance ensure reliability and durability in critical applications.
Highly resistant to corrosion, these rods are used in applications where strength and durability are crucial. Sizes range from M6 to M30 with varying lengths. They provide excellent mechanical properties and are suitable for fastening and structural support.
Exceptional corrosion resistance, these screws are used in high-stress environments. They are available in sizes from M2 to M20 and are suitable for precision applications. Their high strength and durability make them ideal for aerospace and mechanical assemblies.
Excellent corrosion resistance and are used to distribute loads evenly. They come in sizes from M2 to M50 and are commonly used with 17-7 PH fasteners to enhance performance in high-stress and high-temperature environments.
Stainless Steel 17-7 PH Fasteners find extensive applications in high–strength, corrosion-resistant, and high-fatigue properties-demanding industries. In the aerospace industry, they find applications in aircraft structural parts, landing gear, and engine components. The automotive sector uses them in high-performance vehicles, suspension systems, and exhaust parts. They are also utilized in marine, chemical processing, and medical equipment applications owing to their high durability and resistance to extreme environments. They are also located in industrial equipment, pressure vessels, and defense systems where great tensile strength and wear resistance are needed to ensure long term performance.
17-7 PH Stainless Steel Fasteners are supplied with test certificates like Mill Test Certificates (MTC) as per EN 10204/3.1, third-party inspection reports, and material traceability records to guarantee quality and conformity. They are packaged and shipped safely in wooden crates, protective plastic wrapping, or corrosion-resistant coverings to prevent shipping damage. Delivery is available by air, sea, or road transport to ensure safe, timely delivery to domestic and international customers.
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