Harsh Metalloys stands out as a leading manufacturer and supplier of Stainless Steel 17-7 PH Fasteners, proudly based in Mumbai, India. This particular stainless steel is a precipitation-hardening martensitic alloy, celebrated for its remarkable blend of high strength, corrosion resistance, and good formability. These fasteners deliver exceptional performance in both moderate and severe environments, making them essential where strength and toughness are paramount. Harsh Metalloys offers a diverse selection of 17-7 PH fasteners, including bolts, nuts, screws, studs, and washers, all crafted to meet international standards like ASTM A693, catering to industries such as aerospace, automotive, and chemical processing.
Stainless Steel 17-7 PH Fasteners generally consist of 16–18% chromium, 6–7% nickel, and 4–5% aluminum, along with trace amounts of iron, copper, and other elements. These fasteners boast impressive tensile strength ranging from 850 to 1100 MPa, with yield strength between 690 to 1000 MPa, depending on the heat treatment process. The alloy is known for its excellent fatigue resistance, toughness, and corrosion resistance, particularly in mildly corrosive environments. Additionally, it exhibits good magnetic properties and can be heat treated to achieve optimal hardness and strength.
| 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.
These stud bolts offer 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.
Stainless Steel 17-7 PH bolts offer 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.
Offering 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.
These washers provide 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 are widely utilized in various industries, including aerospace, marine hardware, automotive, and chemical processing. Thanks to their impressive strength-to-weight ratio, they’re perfect for critical fastening tasks that demand durability and resistance to corrosion. You’ll find these fasteners performing reliably in heat exchangers, valves, pumps, and structural components that face moderate corrosive conditions. They’re also a go-to choice in power generation, nuclear reactors, and industrial machinery, where dependable mechanical performance and resistance to stress corrosion cracking are crucial. With their versatility and toughness, 17-7 PH fasteners are a top pick in challenging engineering fields.
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