Home > Stud Bolts > Stainless Steel 309 / 309s Stud Bolts
Nakamura Stainless, based in Pulau Ujong, Singapore, is a well-known maker and supplier of high-quality stainless steel products, including stainless steel 309 and 309S stud bolts. These stud bolts are designed to work well in high-temperature and corrosive environments. They offer great resistance to oxidation, scaling, and thermal fatigue. Stainless steel 309 and its low-carbon version, 309S, provide strong and durable performance under extreme heat. Nakamura Stainless focuses on precise manufacturing and strict quality control, making these stud bolts suitable for use in power generation, petrochemical, furnace systems, and chemical processing industries.
Stainless steel 309/309S stud bolts usually contain 23 to 25% chromium and 12 to 15% nickel. The 309S version has lower carbon content, which improves weldability and reduces carbide precipitation. These bolts deliver tensile strength from 520 to 750 megapascals and remain stable at temperatures up to 1150°C. Their alloy composition gives them excellent resistance to oxidation, corrosion, and thermal degradation in tough 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 Nakamura Stainless, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 309 / 309s Stud Bolts in Pulau Ujong, Singapore. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the Singapore, 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.
Nakamura 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.
Stainless steel 309 and 309S stud bolts are commonly used to secure parts exposed to high temperatures and corrosive environments. Typical applications include boilers, heat exchangers, furnace assemblies, and chemical processing equipment. Their durability and heat resistance make them reliable fasteners in challenging industrial settings.
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