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Located in the bustling industrial hub of Kolkata, Rinku Fasteners is a trusted name in the manufacturing and supply of high-performance Stainless Steel 17-7 PH Washers. Serving clients across India, the company blends advanced engineering expertise with a warm, customer-first approach. Each washer is crafted with precision to ensure exceptional strength, corrosion resistance, and long-term reliability in demanding applications. Rinku Fasteners takes pride in understanding the real needs of its customers, offering dependable products backed by attentive service. Their Stainless Steel 17-7 PH Washers reflect consistent quality, durability, and genuine craftsmanship.
Stainless Steel 17-7 PH Washers are made from a precipitation-hardening stainless steel alloy containing chromium, nickel, and aluminum, giving them excellent mechanical strength and corrosion resistance. Their unique composition allows for controlled heat treatment, resulting in high tensile and yield strength along with impressive hardness and fatigue resistance. These washers maintain stability under high loads, resist deformation, and perform well in elevated temperatures. Their balanced mechanical profile—strength, ductility, and long-term durability—makes them ideal for critical applications where consistent, dependable load distribution is essential.
| 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 Washers are widely used in industries that require strong, heat-resistant, and corrosion-resistant fastening components. They are popular in aerospace assemblies, precision instruments, petrochemical plants, and high-stress mechanical systems. Their stability under temperature variations makes them ideal for valves, pumps, turbines, and structural equipment subjected to vibration or dynamic loads. Marine engineering, automotive components, and chemical processing systems also benefit from their reliable performance. Engineers appreciate these washers for their ability to maintain tight, secure connections while ensuring even load distribution. Their durability and versatility make them essential in many demanding industrial environments.
To ensure transparency and reliability, we ensure complete documentation for our Stainless Steel 17-7 PH Washers. Our documentation includes commercial invoicing, packaging information, fumigation certificates, heat treatment protocols and quality control programs. Each order is carefully packed to minimize damage during transit, ensuring the safe delivery of our products. These advanced features ensure our stainless steel 17-7 pH washers meet the highest industry standards and deliver exceptional quality and performance.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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