Home > Stud Bolts > Stainless Steel 321 / 321H Stud Bolts
Andre Stainless is a well-respected manufacturer and supplier located in Singapore, specifically on Pulau Ujong. They specialize in providing high-quality Stainless Steel 321/321H Stud Bolts to clients in Dubai, UAE. With a strong dedication to precision engineering and top-notch material standards, Andre Stainless produces stud bolts that boast remarkable heat resistance, corrosion resistance, and strength even in high-pressure situations. These products adhere to international specifications, guaranteeing reliable performance in demanding industries. By prioritizing quality, timely delivery, and customer satisfaction, Andre Stainless has built a solid reputation as a trusted provider of Stainless Steel 321/321H Stud Bolts throughout the UAE and beyond.
The Stainless Steel 321/321H Stud Bolts are primarily made of iron, with chromium (17-19%), nickel (9-12%), and titanium (at least five times the carbon content) for the 321 grade. The 321H grade features a higher carbon content (0.04–0.10%) to enhance high-temperature strength. These bolts are known for their impressive mechanical properties, including a tensile strength of about 515 MPa, yield strength of 205 MPa, and an elongation of 40%. Their austenitic structure improves toughness and resistance to intergranular corrosion, making them perfect for high-temperature and oxidative 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.
Andre 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 applications that demand high-temperature resistance and mechanical strength. They are commonly utilized in industries such as petrochemical, power generation, heat exchangers, and exhaust systems, where prolonged exposure to elevated temperatures is a norm. These stud bolts are particularly well-suited for furnace components, expansion joints, and parts of aircraft engines. Their outstanding resistance to oxidation and scaling also makes them ideal for thermal processing equipment. Whether in refineries or aerospace applications, these bolts guarantee durability, structural integrity, and consistent performance even in the toughest operational conditions.
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