Strategically positioned in Manama, Bahrain, Niazi Stainless has built a strong reputation as a trusted partner for industrial fastening needs. Our specialization includes the supply of high-performance Stainless Steel 309S Bolts, which we provide with a commitment to quality and reliability. Understanding the demanding nature of industries in the region and beyond, we ensure our clients receive products engineered to withstand extreme conditions, making them a go-to solution for critical applications where failure is not an option.
The composition of 309S bolts is specifically formulated for resilience, featuring a higher chromium and nickel content than standard austenitic grades. This unique blend gives these bolts their signature resistance to oxidation and scaling when exposed to high temperatures. Mechanically, they maintain excellent strength and durability under thermal stress, offering superior creep resistance. This combination of chemical and mechanical properties makes them uniquely suited for environments where both heat and corrosion are significant concerns.
|
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.
You’ll typically find 309S bolts hard at work in some of the most challenging industrial settings. They are indispensable in the construction of furnaces, ovens, and boiler systems, where components are constantly subjected to intense heat. Their stability also makes them a preferred choice in the petrochemical and power generation industries for assembling heat exchangers and refinery equipment. Essentially, wherever extreme temperatures threaten the integrity of standard fasteners, 309S bolts provide the necessary long-term reliability and safety.
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