Akor Stainless, based in Abuja, Nigeria, stands out as a top-notch manufacturer and supplier of high-quality Stainless Steel 321 Bolts. These bolts are crafted to perform reliably in high-temperature and corrosive settings. Each bolt is precision-engineered to ensure exceptional strength, durability, and long-lasting reliability, all while adhering to international standards for critical industrial applications. With impressive resistance to oxidation and stress corrosion, Akor Stainless delivers Stainless Steel 321 Bolts that maintain their structural integrity even in the harshest conditions. Trusted by various industries, these bolts are perfect for applications that demand dependable fastening solutions, seamlessly blending mechanical strength with corrosion resistance to endure tough operational and thermal environments.
The composition of Stainless Steel 321 Bolts includes iron, chromium (17–19%), nickel (9–13%), and titanium, which is added to prevent intergranular corrosion, along with controlled amounts of carbon, manganese, and silicon. These bolts showcase remarkable tensile strength, high yield strength, and outstanding toughness. They remain stable even after prolonged exposure to high temperatures, resisting creep, scaling, and thermal fatigue, ensuring long-term mechanical reliability. The titanium stabilization helps prevent sensitization, making Stainless Steel 321 Bolts ideal for applications that require both high-temperature performance and corrosion resistance.
Material | Specification | Standards | Size | Length |
Stainless Steel 321 Bolts | ASTM, ASME and API | ASTM B 193 / ASME SB 193 | M02 to M30 | 3 mm To 200 mm |
| Element | SS 321 |
| 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 321 |
| 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 321 bolts are high-performance fasteners known for their excellent oxidation and corrosion resistance at elevated temperatures. Ideal for aerospace, chemical processing, and industrial applications, they ensure durability and reliability.
Custom Stainless Steel 321 Hex Bolt is a conformable fastener with a hexagonal head, providing excellent resistance to temperature rise and corrosion, ideal for precision applications in aerospace and industrial applications
Stainless Steel 321 leg bolt features a unique leg design for enhanced stability, providing excellent high-temperature and corrosion resistance. It is ideal for securing components in demanding industrial and aerospace environments.
Stainless Steel 321 expansion anchor bolt is designed for anchoring in concrete or masonry, offering superior high-temperature and corrosion resistance. It expands upon installation, ensuring secure and reliable fastening in harsh conditions.
Stainless Steel 321 hex flange head bolt features a hexagonal head with an integrated flange, providing high-temperature and corrosion resistance. Ideal for secure clamping in industrial and aerospace applications.
Stainless Steel 321 full threaded bolts are high-temperature resistant fasteners with continuous threading. They offer excellent corrosion and oxidation resistance, making them suitable for demanding industrial and aerospace applications.
All the required documentation, which are commercial invoice, packaging list, heat treatment chart, and quality assurance plan are given with Our Stainless Steel 321 Bolts. Furthermore, NABL-approved lab test reports, MTC, PMI Test Certificates, radiography test reports, and Third-Party Inspection Certificates also accompany to guarantee international standards for quality and satisfaction of our valued customers.
You’ll find Stainless Steel 321 Bolts widely utilized in the chemical processing, petrochemical, power generation, and aerospace sectors, thanks to their durability and ability to withstand high temperatures. They’re perfect for fastening components in boilers, heat exchangers, furnace parts, pressure vessels, and exhaust systems. Moreover, these bolts are also used in structural and industrial applications where long-term reliability under thermal stress is essential. With their unique combination of strength, toughness, and corrosion resistance, Stainless Steel 321 Bolts ensure safe, efficient, and dependable performance.
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