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Poang Fasteners is a leading manufacturer, supplier and exporter of stainless steel 309/309S bolts with domestic and international quality standards. Our bolts are available in various sizes, ranges and finishes to suit industry requirements. We offer these high-quality bolts competitively, ensuring reliability and performance for demanding applications.
Poang Fasteners, one of Vietnam’s largest manufacturers and suppliers in Da Nang, is known to provide world-class fastening solutions that are of high quality. Our Stainless Steel 309/309S Bolts are engineered specifically for corrosive and high-temperature environments and are designed to be durable, strong, and resistant to scaling up to a temperature of 1100°C. Having a balanced mixture of chromium and nickel, the bolts are supplied with excellent oxidation resistance and mechanical stability, which provides long-term performance for harsh applications. Applied in industries like petrochemical, power generation, and chemical processing, Poang’s 309/309S bolts are relied upon for their dependability, safety, and compliance with tough international standards.
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 Bolts have 23–26% chromium and 13–17% nickel, which provides resistance to oxidation and corrosion at high temperatures. The bolts exhibit superior strength, creep strength, and toughness up to 1100°C (2012°F). The major mechanical properties are good tensile strength, outstanding durability, and scaling and thermal fatigue resistance. The controlled chromium and nickel balance provides minimal deformation with cyclic heating. Their resistance to heat combined with mechanical strength makes them appropriate for extreme industrial environments where strength and stability are equally important.
Stainless Steel 309/309S Bolts find extensive application in high-heat applications that demand enhanced oxidation and corrosion resistance. They find ideal application in industrial furnaces, heat exchangers, and air filtration systems, where the ability to operate at extreme heat is a necessity. In the power and petroleum industries, these bolts find application in high thermal and chemical stress equipment. Moreover, their scaling resistance makes them a must in reactor vessels, chemical plants, and furnace linings. With their reliability, strength, and thermal stability, 309/309S bolts provide efficient and safe operation in industries demanding long-term endurance in high-temperature conditions
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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