Weston Stainless, Midland, UK, is a prominent supplier of high-quality stainless steel products, offering top–notch solutions for industrial applications. Among their best-selling products are Stainless Steel 330 Fasteners, which are suitable for resisting extreme heat and corrosion. These fasteners are of Grade 330 and come in different shapes such as bolts, nuts, washers, screws, and studs. Produced from stainless steel alloy 330, they possess outstanding oxidation resistance, high strength, and superior durability at high temperatures, and thus are well-suited for high-stress applications like furnace components, heat exchangers, and petrochemical processing equipment.
Stainless Steel 330 Fasteners consist of Nickel (34-37%), Chromium (17-20%), Iron (balance), and controlled Silicon, Manganese, and Carbon in specific quantities. This combination provides superior oxidation and carburization resistance at temperatures up to 1150°C. These fasteners exhibit around 600 MPa tensile strength, yield strength of around 300 MPa, and elongation of around 30%, providing excellent mechanical performance. With a density of around 7.9 g/cm³ and good thermal expansion characteristics, they perform well under severe thermal cycling and corrosive 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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Strong corrosion resistance and are used with 330 bolts. They come in sizes from M6 to M30, with corresponding dimensions matching the bolts. These nuts are designed to withstand high temperatures and harsh environments.
Exceptional resistance to corrosion and high-temperature environments. Available in sizes from M6 to M30 with standard lengths ranging from 50 mm to 300 mm, they ensure durability and strength for critical applications.
Excellent corrosion resistance, especially in high-temperature environments. They are available in various sizes, typically from M6 to M30, with lengths from 20 mm to 200 mm, ensuring reliability in extreme conditions.
Superior corrosion resistance and are available in diameters from M6 to M30. They come in lengths from 100 mm to 1000 mm, suitable for various industrial applications requiring high temperature and corrosion resistance.
Highly resistant to corrosion and heat, making them suitable for demanding environments. Sizes generally range from M3 to M12, with lengths from 10 mm to 100 mm, providing reliable performance in high-temperature applications.
Excellent corrosion resistance and are used to distribute load and prevent damage. They come in sizes ranging from M6 to M30, with thicknesses typically from 1 mm to 10 mm, ensuring compatibility with various fasteners.
Stainless Steel 330 Fasteners find extensive application in industries where they need to offer excellent heat and oxidation resistance, including furnace production, petrochemicals, heat treatment facilities, and power generation. They are suitable for fastening high-temperature equipment, such as industrial ovens, exhaust systems, heat exchangers, and gas turbines. They are also applied in chemical processing units, cement plants, and thermal reactors because they can resist carburization, nitriding, and cyclic heating. Their outstanding creep resistance and mechanical stability make them a choice for the most stringent structural applications in hostile environments.
Weston Stainless offers Stainless Steel 330 Fasteners with certified test reports establishing their chemical composition and mechanical properties to international quality standards. The fasteners are carefully packed in wooden boxes, plastic containers, or special packing to avoid damage and ensure safe handling. Supplied in a range of sizes and specifications, they are properly stored and shipped with complete traceability. Weston Stainless ensures on-time domestic and international shipping, following rigorous quality control procedures to deliver long-lasting and high-performance fasteners for critical industrial applications.







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