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Aria Fasteners, located in Hamilton, New Zealand, has built a solid reputation as a reliable manufacturer and supplier of top-notch fastening solutions tailored for extreme temperatures and corrosive settings. Their Stainless Steel 309/309S Stud Bolts stand out for their remarkable heat resistance, oxidation resistance, and mechanical durability, making them perfect for demanding industrial applications. Crafted with precision and a keen eye on quality control, these stud bolts ensure dependable fastening for assemblies that face high thermal stress. Aria Fasteners caters to various industries, including petrochemical processing, furnace manufacturing, power generation, and thermal engineering, providing components designed for exceptional stability and performance.
The Stainless Steel 309/309S Stud Bolts are constructed from a high-chromium, high-nickel austenitic stainless steel alloy, which offers impressive resistance to scaling and oxidation at elevated temperatures, reaching up to 1100°C. The 309S variant features lower carbon content, which enhances its weldability and reduces carbide precipitation during thermal cycling. These stud bolts retain strong mechanical strength, resist thermal fatigue, and maintain corrosion stability, even in oxidizing and moderately reducing environments. With precision threading, they ensure a reliable fit with compatible nuts and washers, delivering a secure and consistent clamping force.
Element | Content (%) |
Iron, Fe | 60 |
Chromium, Cr | 24 |
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 stud bolts are ideal for high-temperature corrosive environments, due to their excellent oxidation resistance. It is commonly used in industrial applications such as furnace components, heat exchangers and air filters where extreme temperatures are common. Their durability and resistance to scaling make them suitable for use in petrochemical, power, and chemical plants. Furthermore, they are used in high-temperature machines and equipment where power and reliability are critical for long-term operation.
These stud bolts find extensive use in industries that demand robust, heat-resistant, and corrosion-resistant fastening solutions. They are particularly well-suited for furnace components, boilers, heat exchangers, kilns, high-temperature ducting, and equipment used in petrochemical processing. Additionally, Stainless Steel 309/309S Stud Bolts are commonly utilized in flanged joints, structural supports, and industrial machinery that experience continuous high-temperature exposure. Their unique combination of thermal stability and mechanical durability makes them an excellent choice for a variety of 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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