Njabulo Stainless is a top-notch manufacturer and supplier of high-quality stainless steel fasteners, proudly based in Cape Town, South Africa. They specialize in Stainless Steel 17-7 PH fasteners, skillfully blending advanced metallurgy with precise engineering to create durable and corrosion-resistant fastening solutions. Known for their unwavering commitment to excellence, Njabulo Stainless caters to a variety of industries, ensuring that every fastener meets rigorous international standards. With state-of-the-art technology and a talented workforce, they play a vital role in supporting South Africa’s infrastructure and manufacturing sectors by providing reliable, high-performance fasteners tailored to meet the unique needs of their clients.
Stainless Steel 17-7 PH is a precipitation-hardening alloy primarily made up of iron, 17% chromium, and 7% nickel, along with small amounts of aluminum and titanium. This special blend gives it remarkable corrosion resistance, high strength, and impressive toughness. The alloy boasts mechanical properties that include high tensile strength, typically ranging from 900 to 1200 MPa after heat treatment, along with excellent fatigue resistance. Its ability to maintain structural integrity in tough environments makes it perfect for critical fasteners, striking a great balance between hardness, ductility, and resistance to stress corrosion cracking.
| 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.
All orders for our Stainless Steel 17-7 PH Fasteners are accompanied by essential documentation such as a commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and NABL-approved lab test report. These documents give authenticity and quality superiority of the fasteners and comfort to the customer regarding the use. Besides, we offer different test certificates for our Stainless Steel 17-7 PH Fasteners such as MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate against our commitment towards the product and customer excellence.
Fasteners made from Stainless Steel 17-7 PH by Njabulo Stainless are widely utilized in the aerospace, automotive, marine, and chemical processing industries, thanks to their exceptional strength and corrosion resistance. These fasteners are crucial in settings that demand high mechanical performance and the ability to withstand extreme conditions like saltwater, high temperatures, and corrosive chemicals. Their applications range from aircraft components and engine parts to structural assemblies and equipment that face harsh operational stresses. Njabulo Stainless is dedicated to ensuring that these fasteners provide reliability and longevity, meeting the rigorous demands of engineering projects and maintenance tasks across South Africa’s diverse landscape.
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