Home > Stud Bolts > Stainless Steel 321 / 321H Stud Bolts
Amer Stainless, based in Amman, Jordan, is a well-respected manufacturer and supplier of top-notch Stainless Steel 321 / 321H Stud Bolts. They provide dependable fastening solutions tailored for high-temperature and corrosive industrial settings. Thanks to their cutting-edge manufacturing techniques, precise engineering, and rigorous quality control, Amer Stainless guarantees that each stud bolt adheres to international standards for durability and performance. The company focuses on delivering products that uphold structural integrity even in extreme conditions. Their 321 / 321H Stud Bolts are extensively utilized in the petrochemical, power generation, and thermal processing sectors, making them a reliable partner for essential fastening needs in challenging environments.
Stainless Steel 321 / 321H Stud Bolts are austenitic alloys that consist of about 17–19% chromium, 9–12% nickel, and are stabilized with titanium to avoid carbide precipitation. The 321H version has a higher carbon content, which boosts its creep and tensile strength at elevated temperatures. These stud bolts are mechanically impressive, offering excellent tensile and yield strength, good ductility, and dependable toughness. They remain stable even under prolonged exposure to high heat and resist oxidation and scaling. These characteristics make 321 / 321H stud bolts perfect for critical applications that demand both mechanical strength and high-temperature corrosion resistance.
| Grade | Stainless Steel 321 / 321h |
| Specifications | ASTM A193 / ASME SA193, DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M 02 to M 160, Custom Sizes |
| Types | Threaded Rod, Class A double ended stud, Tie Rod, Double Ended Stud, Stud Bolts, Bronze Hex Studs, Threaded Studs etc |
| Element | Ni | C | Mn | P | S | Si | Cr |
| SS 321 / 321h | 9.00 – 12.00 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 321 / 321h | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
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These general-purpose stud bolts are known for excellent corrosion resistance and stability at high temperatures, suitable for diverse industrial applications.
Designed with a hexagonal head for easy installation, these bolts offer high strength and resistance to scaling and oxidation.
These fully threaded bolts provide uniform grip and strength, ideal for high-stress environments and precision applications.
Designed to anchor structures securely, these bolts resist corrosion and maintain durability in high-pressure and thermal conditions.
Engineered for exhaust systems, they provide excellent high-temperature resistance and withstand thermal cycling.
Used in heavy-duty wooden or masonry structures, these bolts combine corrosion resistance with exceptional durability.
Amer Stainless ensures stainless steel 321 / 321H stud bolt produced is quality-based and has appropriate testing under hardness, spectro analysis, PMI, flaring. Extended documentation is allowed in the invoice, details as related to packaging as well as its certificate of origin along with Third-party inspection certificate.
Stainless Steel 321 / 321H Stud Bolts find extensive use in industries that operate in high-temperature and corrosive environments. They’re commonly found in petrochemical plants, where they’re used in reactors, heat exchangers, and piping systems that endure thermal stress. Power generation facilities rely on these stud bolts for boilers, turbines, and superheater assemblies due to their creep resistance and stability. Additionally, the alloy is utilized in furnace construction, exhaust systems, and industrial kilns.
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