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Aria Fasteners, located in Hamilton, New Zealand, has earned a solid reputation as a reliable manufacturer and supplier of top-notch industrial fastening solutions. Their Stainless Steel 309/309S Washers are crafted to deliver outstanding heat resistance, durability, and protection against corrosion, making them perfect for tough applications. With a focus on precision and rigorous quality control, these washers guarantee even load distribution and secure fastening in assemblies that face high temperatures. Aria Fasteners caters to various industries, including petrochemical processing, furnace manufacturing, thermal engineering, and power generation, providing components that are built to last in harsh environments.
The Stainless Steel 309/309S Washers are constructed from a high-chromium, high-nickel austenitic stainless steel alloy, which offers remarkable resistance to oxidation and scaling at elevated temperatures. The 309S grade, featuring a lower carbon content, enhances weldability and reduces carbide precipitation during thermal cycling. These washers boast strong mechanical stability, resistance to thermal fatigue, and corrosion resistance in both oxidizing and moderately reducing conditions. Thanks to precise manufacturing, they ensure accurate dimensions and compatibility with corresponding nuts and bolts, providing secure and reliable fastening.
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.
These washers find extensive use in industries that demand heat-resistant and corrosion-resistant fastening components. They are particularly well-suited for furnace equipment, heat exchangers, boilers, kilns, high-temperature ducting, and petrochemical processing systems. Additionally, Stainless Steel 309/309S Washers are commonly used in flanged joints, structural assemblies, and machinery that operates under constant high-temperature conditions. Their blend of thermal stability, mechanical reliability, and long-lasting durability makes them a trustworthy choice for critical high-heat applications.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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