Chanchai Stainless supplies Stainless Steel 321 Bolts in Bangkok, Thailand. These bolts are designed for durability, weldability, and resistance to intergranular corrosion. Stabilized with titanium, grade 321 prevents carbide precipitation during welding and prolonged heating, making these bolts suitable for environments exposed to temperatures up to 870°C. They offer excellent oxidation resistance, toughness, and stability, ensuring long-term reliability in industrial and structural applications. Chanchai Stainless manufactures 321 Bolts to meet international standards, providing secure fastening solutions for industries that require performance, corrosion resistance, and high-temperature reliability.
Stainless Steel 321 bolts contain chromium (17–19%), nickel (9–12%), titanium stabilizers, and low carbon (<0.08%). Titanium prevents carbide precipitation, enhancing weldability and resistance to intergranular corrosion. Their mechanical properties include a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. They provide excellent oxidation resistance up to 870°C with good toughness and creep resistance, making them suitable for use in elevated-temperature situations.
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 | – |
Contact us to get a quick quote for your requirement.
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.
©2024 Chanchai Stainless All Rights Reserved.
