Vinit Stainless provides SS 330 fasteners designed to work under extreme high temperature conditions. With a manufacturing facility in Chennai, the company produces bolts, nuts, washers, and studs made of SS 330, an austenitic stainless steel with superior resistance to oxidation and carburization. Suited for application in industrial heating plants and thermal processing facilities, Vinit ensures each fastener is produced to operate under service temperatures over 1100°C. Using precision machining and high quality checks, Vinit Stainless offers high-strength SS 330 fasteners in accordance with the requirements of the metallurgy, chemical, and furnace sectors.
SS 330 has 18–20% chromium, 34–37% nickel, ≤1.5% manganese/silicon, and ≤0.08% carbon. It has small traces of iron and trace elements as well. The tensile strength of this grade is 550–750 MPa, yield strength ~300 MPa, and elongation ~40%. It is outstanding with respect to thermal stability and oxidation resistance and can be used for long-term use at more than 1000°C. The alloy is structurally stable under thermal cycling.
|
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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Stainless Steel 330 Nuts provide 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.
Stainless Steel 330 Stud Bolts exhibit 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.
Stainless Steel 330 Bolts offer 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.
Stainless Steel 330 Threaded Rods offer 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.
Stainless Steel 330 Screws are 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.
Stainless Steel 330 Washers provide 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.
SS 330 fasteners find extensive application in heat treatment fixtures, furnace components, petrochemical burners, and cement kilns. Due to their high nickel content, SS 330 fasteners exhibit superior resistance to carburization as well as scaling even in aggressive combustion conditions. Vinit’s SS 330 fasteners are used by various industries in Chennai and South India for performance in refinery heaters, recuperators, and radiant tubes, where conventional austenitic stainless steels are subjected to high-temperature oxidation failures.
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