Lecong Stainless, a reputable manufacturer and supplier of stainless steel based in Da Nang, Vietnam, is well-known for providing top-notch products around the globe. As a prominent manufacturer of Stainless Steel 321 Bolts in Dubai, UAE, the company is dedicated to delivering precision-engineered fasteners that adhere to international standards. With state-of-the-art production facilities and a talented workforce, Lecong Stainless guarantees that each bolt offers exceptional durability, strength, and resistance to corrosion. Their commitment to innovation, reliability, and customer satisfaction has made them a go-to choice for industries that require high-performance fastening solutions.
Stainless Steel 321 Bolts are made from titanium-stabilized austenitic stainless steel, which includes chromium (17–19%), nickel (9–12%), and trace amounts of titanium to prevent carbide precipitation. They boast a tensile strength of around 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. With remarkable resistance to oxidation up to 870°C and good creep strength, these bolts maintain their toughness in both high and low temperatures. Their mechanical stability, paired with excellent corrosion resistance, makes them perfect for critical applications in challenging 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.
These Stainless Steel 321 Bolts are commonly used in industries where strength, durability, and high-temperature resistance are crucial. They are found in petrochemical plants, power generation facilities, and refineries due to their ability to resist oxidation and scaling. In the aerospace and automotive industries, these bolts are essential components in exhaust systems, heat exchangers, and engine parts. They also play a vital role in marine settings, chemical processing equipment, and food processing machinery, where they frequently encounter corrosive substances. Their capacity to withstand thermal stress makes them invaluable for long-term, heavy-duty operations.















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