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Puri Fasteners, a leading manufacturer and supplier based in Chennai, focuses on delivering top-notch Stainless Steel 446 Fasteners. These fasteners are crafted for exceptional strength, durability, and resistance to corrosion, making them perfect for tough industrial settings. Each piece is precision-engineered to ensure secure fastening, accurate dimensions, and mechanical stability even under high stress. Stainless Steel 446 Fasteners shine in high-temperature situations and harsh environments where preventing oxidation and corrosion is crucial. They’re widely utilized in the chemical, petrochemical, marine, and engineering sectors, providing strong connections that resist loosening from vibrations and enhance structural integrity, all while offering reliable, long-lasting performance for various industrial and mechanical assemblies.
These fasteners are made from a ferritic stainless steel alloy that contains about 22–23% chromium, along with low carbon and small amounts of other alloying elements to boost corrosion resistance and strength. This unique composition grants them excellent oxidation resistance, stability at high temperatures, and moderate mechanical strength. Their mechanical properties include impressive tensile strength, hardness, and resistance to scaling at elevated temperatures, making them ideal for high-stress applications in corrosive or high-heat environments. Stainless Steel 446 Fasteners blend durability, wear resistance, and dimensional stability, ensuring they perform reliably in challenging industrial conditions.
| Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
| SS 446 | 2.0 max | 1.5 max | 0.75 max | 0.040 max | 0.030 max | 23.00 – 30.00 | – | 0.50 max | 0.10 – 0.25 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.5 g/cm3 | 1510 °C (2750 °F) | Psi – 75,000 , MPa – 485 | Psi – 40,000 , MPa – 275 | 20 % |
| Standard | ASTM A193,A194 / ASME SA193,SA194 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 mm to 200 mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
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.
You’ll often find Stainless Steel 446 Fasteners in heat exchangers, furnace components, chemical processing equipment, automotive exhaust systems, and high-temperature industrial machinery. They’re also perfect for applications that need secure load distribution, resistance to loosening from vibrations, and long-term protection against corrosion. These fasteners are well-suited for structural, mechanical, and marine environments where exposure to heat, oxidizing agents, and corrosive conditions is a regular occurrence.
We are committed to ensuring the highest quality of our materials and achieving complete client satisfaction. To uphold these standards, all our products undergo rigorous quality testing. Our comprehensive testing procedures include hardness tests, chemical analysis via spectroanalysis, positive material identification (PMI), flattening tests, and micro and macro examinations. Additionally, we conduct pitting resistance tests, flaring tests, and intergranular corrosion (IGC) tests to ensure the reliability and performance of our products.
Puri Fasteners is a leading manufacturer and supplier of high-quality fasteners in Chennai, India, with over 8 years of experience serving global industries.
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