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Mira Fasteners stands out as a leading manufacturer and supplier of Stainless Steel 309/309S Washers, proudly based in Kuala Lumpur, Malaysia. Known for their unwavering commitment to quality and precision, this company provides durable, heat-resistant washers that meet the needs of various industrial applications. Crafted with advanced techniques and top-notch materials, Mira Fasteners’ 309/309S washers excel in high-temperature and corrosive environments. With a robust distribution network and a customer-first mindset, they guarantee timely deliveries, tailored options, and reliable product performance, making them a go-to supplier for Stainless Steel 309/309S Washers both locally and internationally.
These washers are made from a blend of chromium (22–24%) and nickel (12–15%), with the 309S version featuring a lower carbon content to minimize the risk of carbide precipitation during welding. They boast impressive oxidation and corrosion resistance, especially in high-temperature settings. With a tensile strength of around 550 MPa, yield strength of 205 MPa, and an elongation of 40%, these washers are built to last. Their dependable mechanical strength and resistance to thermal cycling ensure they remain stable and functional in challenging service conditions, making them an excellent choice for supporting bolted joints under significant stress and elevated temperatures.
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.
Stainless Steel 309/309S Washers find extensive use in industries that require exceptional thermal and corrosion resistance. Common applications include petrochemical processing, power generation, furnace construction, exhaust systems, heat exchangers, and incinerators. These washers play a crucial role in assemblies where consistent load distribution and thermal stability are vital. Their ability to resist scaling and oxidation at high temperatures makes them perfect for environments with continuous heating or thermal cycling. The 309S variant, known for its enhanced weldability, is particularly suited for welded structures, effectively preventing intergranular corrosion.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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