Home > Stud Bolts > Stainless Steel 321 / 321H Stud Bolts
Based in Chennai, India, Vinit Stainless is a well-known producer and supplier of premium stainless steel goods. Motivated by a dedication to quality, we provide a variety of industrial parts, such as our dependable and long-lasting stainless steel 321 / 321H Stud Bolts. Because of their exceptional resistance to oxidation, corrosion, and high temperatures, these stud bolts are extensively utilized in the petrochemical, aerospace, power generation, and construction industries. Vinit Stainless ensures cost-effective, long-lasting, and precisely engineered products supported by timely delivery and committed customer support by customizing our solutions to meet specific industrial requirements.
Austenitic stainless steel alloys with 17–19% chromium, 9–12% nickel, and a trace amount of titanium, which improves intergranular corrosion resistance, are used to make stainless steel 321 and 321H Stud Bolts. Compared to standard 321H, the 321H variant offers better creep strength and high-temperature performance due to its higher carbon content. Strong mechanical qualities such as high tensile strength, good ductility, and resistance to thermal fatigue are displayed by these stud bolts. They are perfect for use in demanding and high-temperature environments because of their weldability and stability under thermal cycling.
| 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.
Vinit 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.
In high-temperature and corrosive settings, such as petrochemical plants, refineries, power generation facilities, and aerospace structures, stainless steel 321/321H Stud Bolts are frequently utilized. They are appropriate for flanges, valves, and crucial piping systems due to their resistance to oxidation and scaling at high temperatures. Applications like heat exchangers, reactor vessels, and exhaust systems that require frequent heating and cooling cycles benefit greatly from these bolts. Excellent mechanical strength and resistance to intergranular corrosion make them perfect for applications where long-term performance and durability under harsh service conditions are crucial.
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