MERIH STAINLESS, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of premium Stainless Steel 321 Bolts, specifically designed for high-temperature and corrosive settings. Renowned for their strength, durability, and resistance to intergranular corrosion, these bolts offer reliable fastening solutions for demanding industrial applications. With a commitment to advanced manufacturing techniques and rigorous quality control, MERIH STAINLESS guarantees that its Stainless Steel 321 Bolts comply with international standards. These bolts find extensive use in the petrochemical, chemical processing, power generation, aerospace, and automotive sectors, ensuring dependable performance and longevity even in extreme conditions.
Stainless Steel 321 Bolts are a type of austenitic stainless steel, featuring 17–19% chromium, 9–12% nickel, and titanium to stabilize the structure and prevent carbide precipitation. Typically, these bolts boast a tensile strength of about 515 MPa, a yield strength of 205 MPa, and impressive toughness at elevated temperatures. They also exhibit good resistance to creep and stress-rupture, oxidation resistance up to 870°C, and excellent weldability. This unique combination of properties ensures that Stainless Steel 321 Bolts remain durable, stable, and effective in high-temperature and corrosive industrial 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.
These bolts are widely utilized in industries that demand fastening solutions capable of enduring heat, oxidation, and corrosion. Common applications include chemical processing equipment, petrochemical facilities, and power generation systems such as boilers, heat exchangers, and superheaters. The aerospace and automotive sectors also rely on them for components like exhaust manifolds and jet engines, where high temperatures are a factor. Additionally, they are employed in furnace equipment, thermal processing systems, and high-pressure piping. With their ability to provide secure connections and long-lasting reliability, Stainless Steel 321 Bolts are a trusted choice for various industrial applications.
SS 321 Bolts are commonly used in high-temperature environments such as aircraft exhaust systems, heat exchangers, and industrial furnaces. Their excellent corrosion and oxidation resistance makes them ideal for chemical processing and petrochemical applications. They are also employed in construction and power generation sectors. The bolts are useful in thermal cycling environments. Also ensure long-lasting performance and reliability in extreme conditions.
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