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Punit Fasteners is a reputed manufacturer and supplier of Stainless Steel 17-7 PH Fasteners, operating from Delhi, India. Our speciality is providing precisely engineered fastening solutions that satisfy the requirements of critical and high-performance applications. Our 17-7 PH fasteners provide an exceptional blend of exceptional fatigue properties, corrosion resistance, and high strength. These fasteners are widely used in the petrochemical, marine, and aerospace industries and are renowned for their stability and dependability in harsh operating environments. Punit Fasteners guarantees dependable supply and outstanding service to customers throughout India and the world by strictly adhering to quality standards and taking a customer-centric approach.
Precipitation-hardened stainless steel 17-7 PH has a composition of 17% chromium, 7% nickel, and trace amounts of manganese and aluminium. After heat treatment, it offers good ductility, a hardness of 38–44 HRC, a yield strength of over 1170 MPa, and high tensile strength (up to 1310 MPa). In addition to maintaining good formability and corrosion resistance, the alloy shows excellent fatigue resistance. 17-7 PH is perfect for intricate or close-tolerance fastener designs because it is known for its minimal distortion during heat treatment and is magnetic in some tempers.
| 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 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless steel 17-7 PH fasteners have great advantages in applications requiring good strength and corrosion resistance. Because of its high fatigue resistance and high temperature resistance, it is widely used in aerospace applications such as canals, washing machines, and buildings. Their excellent mechanical properties and reliability make them suitable for high-stress environments, including automotive, marine and power generation applications.
High-stress and precision-critical settings frequently use stainless steel 17-7 PH fasteners. Because of their high strength-to-weight ratio and fatigue resistance, they are widely used in defence systems, chemical processing equipment, and aerospace components. High-performance automotive components, nuclear reactors, and marine hardware all benefit greatly from these fasteners. They are appropriate for springs, washers, bolts, and structural joints because of their capacity to retain mechanical qualities in hot and corrosive conditions. Furthermore, 17-7 PH fasteners are preferred in instrumentation and medical devices where long-term dependability and dimensional stability are crucial under repeated loading circumstances.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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