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Murad Fasteners stands out as a top manufacturer and supplier in Doha, Qatar, specializing in high-quality Stainless Steel 309/309S Nuts. These nuts are crafted for exceptional strength, corrosion resistance, and durability, making them perfect for high-temperature and demanding industrial settings. Using cutting-edge production methods and rigorous quality control, Murad Fasteners ensures that these nuts feature precise threading, accurate dimensions, and dependable fastening performance. Available in a variety of sizes and specifications, these Stainless Steel 309/309S Nuts meet international standards and cater to specific project needs. They are widely utilized throughout Qatar and the Middle East, providing secure, long-lasting, and reliable bolted connections for critical applications in chemical, petrochemical, and industrial projects.
Made from a high-chromium, high-nickel austenitic stainless steel alloy, Stainless Steel 309/309S Nuts excel in oxidation and corrosion resistance, even at elevated temperatures. This unique composition grants them impressive tensile and yield strength, toughness, and stability during thermal cycling. Their mechanical properties include a high load-bearing capacity, resistance to scaling and thermal stress, and consistent performance under varying temperatures. These nuts are designed to maintain dimensional stability and durability in harsh, high-temperature, and corrosive environments, ensuring a long service life with minimal maintenance for essential industrial and high-temperature applications.
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 Nuts are commonly found in situations that demand high-temperature resistance and mechanical reliability. Typical applications include boilers, heat exchangers, furnaces, petrochemical and chemical plants, as well as industrial piping systems. They are also used in power generation, offshore structures, and other heavy industrial setups that face elevated temperatures and corrosive conditions. Thanks to their durability and resistance to oxidation, scaling, and high-temperature corrosion, Stainless Steel 309/309S Nuts are perfect for flanged joints and bolted connections in these demanding environments.
At Murad Fasteners, we prioritize quality by offering multiple certifications on our 309/309S Nuts. Our comprehensive documentation includes commercial invoices, packaging information and certificates of departure. We perform comprehensive testing, offering reports on hardness testing, chemical analysis, positive material identification (PMI), pitting resistance tests, and more. In addition, we issue MTC, PMI test certificates and third-party inspection certificates in accordance with EN 10204/3.1b. This rigorous certification ensures that our fruits meet the highest standards and provide exceptional performance and reliability for demanding applications.
Murad Fasteners is a leading manufacturer and supplier of high-quality fasteners in Doha, Qatar, with over 8 years of experience serving global industries.
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