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Ramu Fasteners stands out as a top-notch manufacturer and supplier of Stainless Steel 309/309S Stud Bolts, proudly based in Hyderabad, India. The company is all about crafting high-quality fastening solutions that excel in heat resistance, corrosion resistance, and mechanical strength, especially in tough industrial settings. With cutting-edge manufacturing facilities, precise machining, and rigorous quality control, Ramu Fasteners guarantees consistent accuracy and dependable performance. Their Stainless Steel 309/309S Stud Bolts are specifically designed to endure high temperatures, thermal cycling, and harsh environments. Catering to a variety of industries, they deliver robust and reliable fastening solutions for critical high-temperature and industrial applications.
These stud bolts are made from high-chromium, high-nickel austenitic stainless steel alloys. The Grade 309S variant is low-carbon, which enhances its resistance to intergranular corrosion while still offering excellent performance at high temperatures. These bolts boast impressive tensile and yield strength, toughness, and thermal stability, even under extreme conditions. Stainless Steel 309/309S maintains its mechanical integrity and dimensional stability in challenging environments, ensuring they last a long time. Their unique blend of heat resistance, corrosion protection, and strength makes them perfect for demanding industrial and high-heat applications.
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.
You’ll find Stainless Steel 309/309S Stud Bolts in various industries that need heat-resistant, corrosion-resistant, and durable fastening solutions. They’re commonly used in furnace components, heat exchangers, petrochemical plants, chemical processing equipment, power generation systems, and exhaust systems. These stud bolts are particularly suited for assemblies that face prolonged high temperatures, thermal cycling, and aggressive chemicals. With their long service life, low maintenance needs, and reliable performance, Stainless Steel 309/309S Stud Bolts are a smart choice for any demanding application.
Ramu Fasteners provides comprehensive documentation with our Stainless Steel 309/309S Stud Bolts, including commercial documentation, packaging information and quality certificates. We also offer comprehensive test reports, such as MTC per EN 10204/3.1b, PMI Testing, 100% radiography, and third-party inspections. This comprehensive documentation ensures transparency, proves quality and guarantees compliance, resulting in high customer satisfaction.
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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