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Mazin Fasteners is a top-notch manufacturer and supplier of Stainless Steel 309/309S Nuts, proudly based in Muscat, Oman. We specialize in providing high-quality fastening solutions tailored for tough industrial applications. Our nuts are crafted to meet international standards, ensuring precision threading, dimensional accuracy, and outstanding durability. With state-of-the-art manufacturing facilities and rigorous quality control, we deliver reliable nuts that excel in high-temperature and corrosive environments. Serving a variety of industries, including petrochemical, power generation, chemical processing, and marine, Mazin Fasteners is known for timely delivery, competitive pricing, and a customer-first approach, making us the go-to supplier of 309/309S stainless steel nuts in Oman and beyond.
Stainless Steel 309/309S Nuts are crafted from a high chromium-nickel austenitic stainless steel, typically featuring 23% chromium and 13% nickel. The 309S variant has a lower carbon content to minimize sensitization. These nuts are renowned for their excellent resistance to oxidation and scaling, even at elevated temperatures. On the mechanical side, they boast impressive tensile and yield strength, along with high ductility and reliable toughness. Their heat and corrosion resistance make them perfect for welded assemblies and high-temperature settings, ensuring they maintain performance and structural integrity through thermal cycling and oxidative conditions.
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 find their place in high-temperature and corrosive industrial settings. They’re perfect for securing components in furnaces, heat exchangers, boilers, petrochemical plants, and power generation equipment. Additionally, you’ll find them in chemical processing units, marine exhaust systems, and industrial ovens, where oxidation resistance and structural integrity are crucial.
At Mazin 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.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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