Khaleed Stainless, a reputable manufacturer and supplier based in Riyadh, Saudi Arabia, is well-known for crafting top-notch stainless steel products that excel in even the toughest environments. One of their standout offerings, the Stainless Steel 321 Bolts, is celebrated for its remarkable resistance to oxidation and intergranular corrosion, particularly in high-temperature settings. Thanks to titanium stabilization, these bolts retain their strength and durability even after being exposed to intense heat for extended periods. Meticulously engineered to comply with international standards, Khaleed Stainless’s Stainless Steel 321 Bolts promise long-lasting reliability, making them perfect for industrial, structural, and mechanical fastening needs.
These bolts are made from a blend of iron, chromium (17–19%), nickel (9–12%), and titanium, which helps stabilize the alloy against carbide precipitation. This unique composition boosts their ability to endure continuous exposure to temperatures as high as 870°C without compromising their mechanical properties. They boast a tensile strength of around 515 MPa, a yield strength of 205 MPa, and an elongation of about 40%. These characteristics ensure they are tough, resistant to creep, and stable under stress, making them ideal for high-temperature and corrosive environments.
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.
Stainless Steel 321 Bolts find their place in various industries that demand reliable fastening solutions in extreme conditions. They are particularly suited for chemical processing equipment, petroleum refineries, power generation plants, and exhaust systems, where heat and corrosion resistance are paramount. Their titanium stabilization also makes them a great choice for welded applications, such as boilers, heat exchangers, and furnace components. Furthermore, they are utilized in aerospace, marine, and automotive sectors for structural assemblies. These bolts offer secure fastening, a long service life, and dependable performance in both corrosive and high-stress situations.
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