Home > Stud Bolts > Stainless Steel 309 / 309s Stud Bolts
Lecong Stainless is a reputable manufacturer and supplier based in Da Nang, Vietnam, known for its high-quality Stainless Steel 309/309S Stud Bolts. These bolts are engineered for exceptional performance in high-temperature and corrosive settings. Thanks to their outstanding heat and oxidation resistance, they maintain their mechanical strength and dimensional stability even under prolonged exposure to heat. Crafted with precision and in line with international standards, these stud bolts offer reliable fastening solutions for critical applications across various industries, including chemical, petrochemical, power generation, and furnace manufacturing. Their durability and ability to withstand high temperatures make them a top choice both in Vietnam and around the world.
The composition of Stainless Steel 309/309S Stud Bolts includes 23–25% chromium and 12–14% nickel, with the 309S variant featuring lower carbon content for better weldability and reduced carbide precipitation. These bolts boast a tensile strength of about 515 MPa, a yield strength of around 205 MPa, and an elongation of 40%. Their high chromium and nickel content ensures excellent oxidation resistance up to 1900°F (1038°C) and strong thermal stability. The blend of mechanical strength, creep resistance, and corrosion resistance makes them a reliable choice for high-temperature and aggressive service conditions.
|
Element |
Content (%) |
|
Iron, Fe |
60 |
|
Chromium, Cr |
24 |
|
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 |
Contact us to get a quick quote for your requirement.
At Lecong Stainless, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 309 / 309s Stud Bolts in Da Nang, Vietnam. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the Vietnam, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.
Designed with threads on both ends, these stud bolts are ideal for applications requiring secure fastening from both sides. They offer excellent resistance to high-temperature environments and corrosion.
These stud bolts feature threaded ends for secure attachment, particularly suited for high-temperature and industrial applications. Stainless Steel 309S provides superior resistance to oxidation and scaling.
Made from Stainless Steel 309, these stud bolts provide excellent strength and resistance to heat and corrosion. Ideal for high-temperature settings, they ensure reliable performance in demanding environments.
Manufactured to meet DIN 1.4833 standards, these stud bolts are used in high-stress applications requiring resistance to extreme temperatures and corrosive environments. They offer robust performance and durability.
These stud bolts are crafted from UNS S30908, a material known for its excellent resistance to heat, oxidation, and corrosion. They are perfect for high-temperature applications in industries like power generation and chemical processing.
Featuring a flush head design, these stud bolts are ideal for applications where a smooth surface is required. Made from Stainless Steel 309S, they offer resistance to high temperatures and provide secure fastening.
Lecong Stainless offers quality Stainless Steel 309 / 309S Stud Bolts with consistent performance, supported by a wide array of tests such as hardness testing, spectro analysis, PMI, and flaring tests. We conduct micro and macro tests, pitting resistance, and IGC tests to provide the best product in every order. Besides the rigorous testing process, we also offer full documentation, which provides our customers with commercial invoices, a packaging list with information of net weights and gross weight, the number of the boxes, and labels. Our legalized or attested Certificate of Origin along with Third-Party Inspection Certificates provides total assurance of our commitment to delivering premium products and unmatched customer satisfaction.
You’ll find Stainless Steel 309/309S Stud Bolts commonly used in chemical processing plants, petrochemical industries, power generation facilities, and high-temperature furnace systems. They’re perfect for securing boilers, superheaters, heat exchangers, exhaust systems, and high-temperature piping. In aerospace and marine applications, they offer long-lasting resistance to thermal cycling and corrosive environments. These stud bolts are also utilized in refineries, kilns, and industrial furnaces where strength, oxidation resistance, and durability are essential. With their exceptional mechanical and thermal properties, Stainless Steel 309/309S Stud Bolts are a trustworthy option for demanding fastening applications.
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