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Mazin Fasteners is a top-notch manufacturer and supplier of Stainless Steel 309 / 309S Fasteners, proudly based in Muscat, Oman. They specialize in providing dependable solutions for environments that experience high temperatures and corrosive conditions. Their fasteners meet international standards, ensuring precise threading, accurate dimensions, and outstanding durability. With cutting-edge manufacturing processes and rigorous quality control, Mazin Fasteners caters to essential industries like petrochemical, power generation, chemical processing, and marine applications. Their dedication to timely deliveries, competitive pricing, and customer-centric support has established them as a trusted partner in Oman and beyond for high-performance 309 / 309S stainless steel fasteners that can handle extreme operating conditions.
Stainless Steel 309 / 309S Fasteners are crafted from a high chromium-nickel austenitic stainless steel, featuring around 23% chromium and 13% nickel. The 309S version has a lower carbon content, which helps minimize sensitization and enhances weldability. These fasteners are known for their excellent resistance to oxidation and scaling, even at high temperatures. In terms of mechanical properties, they boast good tensile and yield strength, along with high ductility, toughness, and reliable creep resistance. Their exceptional heat and corrosion resistance make them perfect for demanding applications in high-temperature, oxidative, and mildly corrosive environments, ensuring long-lasting performance and structural integrity.
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 Fasteners find extensive use in industrial settings where high-temperature strength and corrosion resistance are crucial. They are commonly employed to secure components in furnaces, boilers, heat exchangers, and industrial ovens. Additionally, you’ll find them in petrochemical plants, power generation facilities, and chemical processing equipment, making them a versatile choice for various demanding applications.
At Mazin Fasteners, our commitment to quality is unwavering, as evidenced by the rigorous testing procedures applied to all Stainless Steel 309/309S fasteners before shipment. These advanced tests include hardness, chemical analysis by Spectro analysis, positive material identification (PMI), levelling, micro-macro, pitting resistance, fire and intergranular corrosion (IGC) testing. Furthermore, we offer third-party inspection certifications to ensure our fasteners are of the highest quality and reliable 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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