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Rinku Fasteners is a leading supplier, manufacturer and exporter of stainless steel 309/309S washers known for exceptional corrosion resistance and durability. Our washers are available in various sizes and configurations for their excellent tensile strength and long service life. These books are designed to meet the exacting requirements of many industries, providing reliable performance in ambient and harsh environments.
Stainless steel 309/309S washers are made of chromium and nickel, providing high resistance to oxidation and corrosion at high temperatures. They provide excellent strength, high temperature and excellent creep resistance. These washers are ideal for use in hot and corrosive environments, such as power plants and chemical and petrochemical industries. Their high oxidation resistance and durability under pressure make them suitable for high-temperature applications, ensuring long-term reliability and performance.
Element | Content (%) |
Iron, Fe | 60 |
Chromium, Cr | 23 |
Nickel, Ni | 14 |
Manganese, Mn | 2 |
Silicon, Si | 1 |
Carbon, C | 0.20 |
Phosphorous, P | 0.045 |
Sulfur, S | 0.030 |
Properties | Metric | Imperial |
Tensile strength | 620 MPa | 89900 psi |
Yield strength (@ strain 0.200%) | 310 MPa | 45000 psi |
Izod impact | 120 – 165 J | 88.5 – 122 ft-lb |
Shear modulus (typical for steel) | 77 GPa | 11200 ksi |
Elastic modulus | 200 GPa | 29008 ksi |
Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break (in 50 mm) | 45% | 45% |
Hardness, Brinell | 147 | 147 |
Hardness, Rockwell B | 85 | 85 |
Hardness, Vickers (converted from Rockwell B hardness) | 169 | 169 |
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 309/309S washers are commonly used in high-temperature applications requiring corrosion resistance. Because they can withstand extreme temperatures and harsh environments, they are ideal for use in power plants, chemical plants, and petrochemical plants. Their high strength ensures reliable performance in applications requiring oxidation resistance and high-temperature stability, making them suitable for demanding industrial conditions.
At Rinku Fasteners, our commitment to quality is evident in the rigorous testing of all Stainless Steel 309/309S washers before shipment. We conduct advanced testing, including hardness, chemical analysis by Spectro analysis, good material identification (PMI), levelling, micro-macro, pitting resistance and intergranular corrosion (IGC) testing. In addition, we offer third-party inspection certificates to confirm that our washers meet the highest standards of quality and reliability, ensuring exceptional performance in harsh environments.
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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