Stainless Steel 309S Bolts are among the high-performance stainless steel fasteners that Vinit Stainless, a well-known manufacturer and supplier with headquarters in Chennai, India, specialises in. Our SS 309S bolts are perfect for use in corrosive and heat-intensive industrial settings because of their exceptional resistance to oxidation and high temperatures. Vinit Stainless guarantees that every bolt satisfies international engineering standards thanks to its sophisticated manufacturing capabilities and stringent quality controls. Many industries, including petrochemical, furnace manufacturing, and power generation, rely on our 309S bolts. For the most demanding industrial applications, we provide dependable, long-lasting, and precisely engineered solutions.
Low-carbon stainless steel 309S bolts are made mostly of nickel (12–15%) and chromium (22–24%). When exposed to high temperatures, the reduced carbon content (maximum 0.08%) enhances weldability and reduces carbide precipitation. These bolts have an elongation of about 40%, a yield strength of about 205 MPa, and a tensile strength of about 515 MPa. In high-heat settings, SS 309S maintains its strength and structural integrity while providing exceptional oxidation resistance up to 1000°C. It is appropriate for thermal cycling applications because of its austenitic structure, which guarantees good ductility and toughness.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 309S Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 309S |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 309S |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
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Stainless Steel 309S bolts are high-temperature resistant fasteners with excellent corrosion resistance, ideal for extreme environments. They offer durability and strength for applications in industrial, aerospace, and chemical processing sectors.
Custom Stainless Steel 309S Hex Bolt is a precise, high heat resistant fastener with a square head, designed for precise applications that require excellent corrosion resistance and strength in harsh environments
Stainless Steel 309S leg bolt is a durable, high-temperature resistant fastener with a distinctive leg shape, ideal for securing components in demanding environments like industrial and aerospace applications.
Stainless Steel 309S expansion anchor bolt is a high-temperature resistant fastener designed for anchoring in concrete or masonry. It expands upon installation, providing strong, secure holding in harsh conditions.
Stainless Steel 309S hex flange head bolt features a hexagonal head with an integrated flange, offering high-temperature resistance and secure clamping in demanding applications, including industrial and structural uses.
Stainless Steel 309S full threaded bolts are high-temperature resistant fasteners with threads running the entire length, providing versatile applications in securing components and assemblies across industrial and aerospace environments.
High temperatures and mildly corrosive conditions are perfect for stainless steel 309S bolts. They are frequently found in catalytic converters, exhaust systems, heat treatment apparatus, and furnace parts. Because SS 309S bolts are resistant to oxidation and scale formation at high temperatures, they are used in a variety of industries, including petrochemical, power generation, and thermal processing. These bolts are also utilised in gas turbines, kilns, and incinerators. 309S bolts are recommended for welded parts and equipment subjected to frequent heating and cooling cycles because of their low carbon content. They are very reliable due to their performance under both structural and thermal stress conditions.
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