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Harsh Metalloys, a prominent manufacturer and supplier located in Mumbai, India, specializes in high-quality Stainless Steel 330 Stud Bolts that are built to perform exceptionally well in extreme heat and corrosive settings. Alloy 330 (UNS N08330) is an austenitic stainless steel recognized for its remarkable resistance to high-temperature oxidation and carburization. These stud bolts are meticulously crafted to comply with rigorous ASTM and ASME standards, ensuring dependable fastening solutions for furnace components, heat treatment equipment, and petrochemical processing systems. With impressive mechanical strength and excellent thermal stability, SS 330 stud bolts are a reliable choice for industrial applications that require long-lasting durability and performance.
Stainless Steel 330 Stud Bolts are mainly made up of 35–37% Nickel, 17–20% Chromium, along with minor amounts of Silicon (1.0–1.5%) and Iron as the balance. This unique composition provides the alloy with outstanding resistance to oxidation, thermal shock, and carburizing environments. These bolts boast a tensile strength of around 550 MPa and retain their mechanical integrity at temperatures reaching up to 1150°C (2100°F). SS 330 stud bolts also demonstrate good ductility, excellent creep resistance, and are non-magnetic when annealed, making them ideal for high-temperature structural and fastening applications in challenging environments.
| Material | Specification | Standards | Length | Size |
| 330 Stainless Steel Fasteners | IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | 3 mm to 200 mm | M 02 to M 160 |
| Component | Wt. % |
| C | Max 0.08 |
| Cr | 19 |
| Fe | 42 |
| Mn | Max 2 |
| Ni | 36 |
| P | Max 0.04 |
| S | Max 0.03 |
| Si | Max 1.13 |
| Hardness, Brinell | 139 | 139 | Converted from Rockwell B hardness. |
| Hardness, Knoop | 155 | 155 | Converted from Rockwell B hardness. |
| Hardness, Rockwell B | 80 | 80 | |
| Hardness, Vickers | 153 | 153 | Converted from Rockwell B hardness. |
| Tensile Strength, Ultimate | 585 MPa | 84800 psi | |
| Tensile Strength, Yield | 290 MPa | 42100 psi | at 0.2% offset |
| Elongation at Break | 45 % | 45 % | in 50 mm |
| Modulus of Elasticity | 197 GPa | 28600 ksi | at 21°C, 179 GPa at 315°C, 164 GPa at 540°C, 145 GPa at 760°C, 134 GPa at 870°C, 124 GPa at 980°C |
| Charpy Impact | 325 J | 240 ft-lb | Annealed |
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SS 330 stud bolts are known for their outstanding resistance to high-temperature oxidation, making them a go-to choice for heat treatment equipment, furnaces, and petrochemical applications that demand long-lasting strength.
These general-purpose SS 330 bolts are both corrosion and heat-resistant, making them perfect for industrial high-temperature systems like exhaust manifolds, kilns, and heat exchangers.
Heavy hex bolts made from SS 330 are designed to handle increased torque and provide superior mechanical strength, making them ideal for tough structural and thermal applications in the chemical and aerospace sectors.
SS 330 stud anchor bolts are specifically crafted for anchoring heavy machinery in high-heat settings, such as incinerators, reactors, and furnace construction.
These bolts are built to maintain their integrity even under extreme thermal cycles, making them perfect for securing exhaust systems in power plants, refineries, and industrial furnace setups.
Hex stud bolts made from SS 330 deliver reliable performance in oxidizing environments and are commonly used in pipelines, flanges, and high-temperature industrial assemblies.
Stainless Steel 330 Stud Bolts are ideal for use in high-temperature and corrosive service environments, including industrial furnaces, heat exchangers, thermal processing plants, and kilns. They are widely used in the petrochemical, power generation, metallurgy, and aerospace industries where thermal stability and oxidation resistance are critical. These bolts are particularly effective in environments with carburizing, nitriding, and oxidizing atmospheres. Their exceptional creep and stress rupture resistance make them perfect for securing components exposed to extreme heat over long periods, ensuring safe, stable, and leak-free performance in demanding operating conditions.
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