Home > Stud Bolts > Stainless Steel 321 / 321H Stud Bolts
Emilio Stainless is a reputable manufacturer and supplier located in Manila, Philippines, specializing in high-quality Stainless Steel 321 / 321H Stud Bolts. These bolts are celebrated for their outstanding resistance to intergranular corrosion and high-temperature oxidation, making them perfect for secure and dependable fastening in tough industrial settings. Emilio Stainless is committed to ensuring that each stud bolt adheres to international quality standards, guaranteeing long-lasting performance. You’ll find Stainless Steel 321 / 321H Stud Bolts widely utilized in sectors like chemical processing, power generation, petrochemical, and marine applications, where they provide robust and corrosion-resistant fastening solutions even in extreme conditions.
The composition of Stainless Steel 321 / 321H Stud Bolts primarily includes iron, along with 17–19% chromium, 9–12% nickel, and trace amounts of titanium to enhance structural stability and prevent carbide precipitation. The 321H variant features a higher carbon content, which boosts its strength at elevated temperatures. These stud bolts boast a tensile strength of about 515 MPa, a yield strength of around 205 MPa, and impressive elongation properties. Their toughness, stability at high temperatures, and resistance to oxidation and scaling make them ideal for critical fastening tasks in demanding industrial environments.
| 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.
Emilio 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 are widely employed to secure components in boilers, heat exchangers, furnaces, and pressure vessels across the chemical, petrochemical, and power generation industries. They are particularly suited for offshore platforms, marine structures, and high-temperature piping systems that frequently encounter corrosive and oxidizing conditions. Moreover, these stud bolts find applications in industrial machinery, refineries, and chemical plants where both strength and corrosion resistance are essential. Their durability and reliability make Stainless Steel 321 / 321H Stud Bolts the go-to choice for critical fastening needs in various industrial applications.
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