Home > Stud Bolts > Stainless Steel 321 / 321H Stud Bolts
In the heart of Kinshasa, Mbemba Stainless stands as a trusted partner for industrial growth, dedicated to providing robust and reliable fastening solutions. We specialize in the supply and manufacturing of high-performance Stainless Steel 321 and 321H Stud Bolts, engineered to meet the rigorous demands of modern industry. Our commitment is to deliver not just products, but a foundation of strength and durability for the critical projects that drive progress throughout the Congo and beyond, ensuring every connection is secure and built to last.
Crafted for resilience, these stud bolts are made from an austenitic chromium-nickel steel stabilized with titanium. This key addition gives Stainless Steel 321 and its high-carbon variant, 321H, their exceptional resistance to sensitization and intergranular corrosion, particularly after exposure to high temperatures. They maintain excellent mechanical properties, including high tensile strength and good creep resistance, allowing them to perform reliably under sustained stress and in challenging thermal environments where other materials might fail.
| 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 % |
Contact us to get a quick quote for your requirement.
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.
Mbemba 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.
The unique properties of these stud bolts make them indispensable in sectors where heat and corrosion are constant challenges. You will find them securely fastening components in high-temperature pipelines, powerful pressure vessels, and the intricate systems of petroleum refineries and chemical processing plants. They are also essential in power generation equipment and exhaust systems, proving their worth anywhere demanding both structural integrity and long-term resistance to aggressive environments, ensuring safety and operational continuity in the most critical applications.
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