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Brian Fasteners is a leading stainless steel 309/309S stud bolts exporter, meeting domestic and international standards. Our stud bolts are available in various sizes, grades and finishes, designed to suit different industries’ requirements. We offer these high-quality fasteners at competitive prices, ensuring exceptional application performance and reliability.
Located in Houston, USA, Brian Fasteners is a leading producer and supplier of premium stainless steel 309/309S stud bolts that are designed to perform exceptionally well in extremely hot conditions. Our 309/309S stud bolts are made to withstand corrosion, scaling, and oxidation in applications that involve high temperatures and thermal cycling. These fasteners, which are made in accordance with international standards, offer exceptional mechanical strength and longevity for demanding industrial applications. In order to provide dependable and long-lasting fastening solutions that are perfect for power plants, petrochemical plants, and the aerospace industry that needs strong high-temperature fasteners, Brian Fasteners offers customised sizes, strict quality control, and quick delivery.
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.
About 23–25% chromium, 12–15% nickel, and a low carbon content (≤0.08% in 309S) make up stainless steel 309/309S Stud Bolts. At temperatures as high as 1100°C, this grade of austenitic stainless steel provides remarkable resistance to oxidation and thermal fatigue. These bolts have a tensile strength between 515 and 690 MPa, a yield strength close to 205 MPa, and an elongation of about 30 to 40%. The lower carbon content of the 309S grade increases corrosion resistance in welded structures subjected to high temperatures by promoting weldability and reducing carbide precipitation.
High-temperature applications like boilers, gas turbines, exhaust systems, heat exchangers, and furnace components frequently use stainless steel 309/309S stud bolts. They are perfect for settings with thermal cycling and high heat exposure because of their exceptional resistance to oxidation and scaling. These bolts are frequently used in heavy machinery, petrochemical industries, power generation plants, and aerospace engineering. Because of its improved resistance to corrosion, the 309S version is recommended for welded assemblies. All things considered, 309/309S stud bolts provide dependable fastening performance for vital equipment running in extreme heat.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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