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Ramu Fasteners stands out as a trusted manufacturer and supplier of Stainless Steel 309/309S Washers in Hyderabad, delivering top-notch fastening components designed for high-temperature and corrosive settings. Thanks to cutting-edge manufacturing techniques and rigorous quality control measures, the company guarantees washers that align with international standards and precise dimensional specifications. The Stainless Steel 309/309S Washers from Ramu Fasteners are prized for their remarkable oxidation resistance, strength, and durability even at elevated temperatures. These washers find their place in power generation, petrochemical, refinery, and thermal processing industries, where reliable performance, safety, and longevity are crucial.
Stainless Steel 309/309S Washers are crafted from an austenitic stainless steel alloy that boasts a high content of chromium and nickel. The Grade 309S variant features lower carbon levels, which helps minimize carbide precipitation during welding and enhances corrosion resistance. This unique composition offers outstanding protection against oxidation and scaling at high temperatures. On the mechanical side, these washers provide impressive tensile strength, excellent toughness, and stability when faced with thermal stress. Their non-magnetic properties and resistance to creep make them ideal for continuous high-temperature applications.
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 frequently utilized in environments where they are subjected to high temperatures and oxidizing conditions. Common applications include furnaces, boilers, heat exchangers, pressure vessels, and high-temperature piping systems. They are extensively used in power plants, petrochemical and chemical processing sectors, refineries, and thermal equipment manufacturing. Additionally, these washers are well-suited for flue gas systems, kiln equipment, and heat treatment units. Their ability to maintain strength and resist oxidation ensures efficient and reliable performance in demanding situations.
At Ramu 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.
Ramu Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hyderabad, India, with over 8 years of experience serving global industries.
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