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Poang Fasteners is a leading supplier, manufacturer and exporter of stainless steel 309/309S nuts, recognized for superior corrosion resistance and durability. Our range is available in various grades and configurations, providing excellent tensile strength and longevity. These nuts are designed to meet the stringent requirements of various industries, providing reliability and performance at high temperatures
Poang Fasteners, a reliable producer and supplier based in Da Nang, Vietnam, presents top-quality Stainless Steel 309/309S Nuts engineered for performing consistently in high-heat and corrosive conditions. Produced with an even balance of chromium and nickel, these nuts exhibit exceptional resistance to oxidation, tensile strength, and creep resistance. They maintain structural stability with prolonged exposure to high temperature, making them suitable for industrial processes that demand durability and stability. Used widely in power plants, petrochemical processing, and furnace making, our 309/309S nuts provide long-term fastening solutions, with outstanding strength and reliability in critical high-pressure 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 contain 23–26% chromium and 13–17% nickel, with outstanding oxidation, corrosion, and scaling resistance. These nuts have high tensile strength, strength, and resistance to creep at up to 1,100°C (2,012°F). The low-carbon 309S grade improves weldability and reduces carbide precipitation, providing long-term performance in corrosive and elevated temperatures. With higher toughness and strength retention, 309/309S nuts are designed for severe industrial systems with both thermal stability and mechanical reliability. Their makeup makes them a perfect fastening solution for severe operational conditions.
Stainless Steel 309/309S Nuts see extensive application in industrial applications with dependable fastening under severe heat and chemical exposure. Within power generation plants, they hold parts together in boilers, turbines, and heat exchangers. In petrochemical plants, they are corrosion-resistant to hostile chemicals and stable under high pressure. They also find application in furnace assembly, air filtration equipment, and reactor vessels, where oxidation resistance and scaling protection are crucial. Also, the nuts are utilized in aerospace and automotive applications, providing structural integrity for systems under extreme thermal cycling. Their strength, corrosion resistance, and durability ensure consistent performance.
Poang Fasteners is a leading manufacturer and supplier of high-quality fasteners in Da Nang, Vietnam, with over 8 years of experience serving global industries.
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