Khaleed Stainless is a reputable manufacturer and supplier of top-notch Stainless Steel 309S Bolts based in Riyadh, Saudi Arabia. These bolts are celebrated for their outstanding resistance to oxidation, corrosion, and high temperatures. Stainless Steel 309S, which is a low-carbon variant of grade 309, boasts enhanced weldability and a lower chance of carbide precipitation, making it perfect for applications that involve frequent welding and exposure to heat. Khaleed Stainless offers precision-engineered bolts that meet international standards, providing dependable fastening solutions for industries like heat treatment, petrochemicals, and power generation.
The composition of Stainless Steel 309S Bolts includes iron, 22–24% chromium, 12–15% nickel, and a maximum of 0.08% carbon. This alloy achieves a tensile strength of about 520 MPa, a yield strength of 205 MPa, and an elongation of roughly 40%. The low carbon content helps prevent sensitization during welding while preserving excellent mechanical properties. These bolts maintain their structural integrity and corrosion resistance at high temperatures, reaching up to 980°C, making them ideal for high-heat, oxidizing, and mildly corrosive environments where mechanical reliability is crucial.
|
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 | – |
Contact us to get a quick quote for your requirement.
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.
We prioritize transparency and customer satisfaction by providing all necessary documentation at the time of delivery. This includes the commercial invoice, packaging list, heat treatment chart, quality assurance plan and the NABL-approved lab test report. Additionally, we offer further assurances with the Material Test Certificate (MTC), Positive Material Identification (PMI) Test Certificate, radiography test reports, and Third-Party Inspection Certificates, ensuring that you receive products of the highest quality and reliability.
Stainless Steel 309S Bolts find extensive use in high-temperature settings such as furnace construction, heat exchangers, boiler systems, and incinerators. They’re also employed in petrochemical plants, refineries, thermal processing units, and food processing equipment. With their remarkable strength, thermal resistance, and corrosion protection, these bolts are perfect for securing components in tough operating conditions. They ensure strong, long-lasting connections in environments where standard fasteners might fail, delivering superior performance and minimizing maintenance over time.
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