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Aditya Stainless, a reputable manufacturer and supplier located in Kolkata, India, specializes in high-quality Stainless Steel 446 Stud Bolts. These bolts are renowned for their outstanding resistance to oxidation, high temperatures, and sulfur-rich environments. As a high-chromium ferritic stainless steel, SS 446 excels in extremely corrosive and scaling conditions. Each stud bolt is crafted with precision threading and consistent dimensions to guarantee secure fastening in critical applications. Aditya Stainless caters to a variety of industries, including furnace construction, petrochemicals, heat exchangers, cement plants, and thermal processing units, where durability and thermal integrity are crucial.
Stainless Steel 446 Stud Bolts generally consist of 23–27% chromium, less than 0.20% carbon, 1.5% manganese, 1.0% silicon, along with trace amounts of molybdenum and nickel. This ferritic grade showcases excellent scaling resistance up to 1100°C, maintains good strength retention, and offers moderate ductility. The mechanical properties include a tensile strength of around 485 MPa, a yield strength of at least 275 MPa, and an elongation of about 18%. While it may not be as strong as martensitic grades, SS 446 provides unparalleled oxidation and sulfidation resistance in high-temperature settings, making it perfect for applications subjected to thermal cycling and aggressive gases.
| 446 Stud Bolt Specifications | ASTM A /SA 193 / 194 |
| 446 Stud Bolt Dimensions | ASTM,DIN, BS,GB, IS and all International Standards |
| 446 Stud Bolt Length | 3 mm to 200 mm |
| 446 Stud Bolts Size | M02 to M33 | Custom Sizes |
| 446 Stud Bolt Type | Stud Bolts, Heavy Stud bolt, Tie Bar, Tie Rod, Continuous Threaded Stud Bolts (Fully Threaded Studs without Chamfered Ends), Tap End Stud Bolts, Double End Stud Bolts, Double End Stud Bolts with Reduced Shank, Flange Stud Bolts (Fully Threaded Studs with Chamfered Ends), MS Stud Bolts, Metric Thread Stud Bolt, Rough Forged Stud Bolts, Stud Half Thread Bolts etc. |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | N | |
| 446 | min. | – | – | – | – | – | 23.0 | – | – | 0.10 |
| max. | 0.20 | 1.5 | 0.75 | 0.040 | 0.030 | 30.0 | 0.50 | 0.25 | ||
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 446 | 485 | 275 | 20 | 92 | 201 |
Contact us to get a quick quote for your requirement.
446 SS Heavy Stud Bolts are designed for high-stress, high-temperature applications, offering superior strength, durability, and corrosion resistance.
Stainless Steel 446 Double End Stud Bolts provide excellent high-temperature and corrosion resistance, ideal for heavy-duty industrial applications requiring robust performance.
For high quality, we perform vigorous in-house tests on our Stainless Steel 446 Stud Bolts. Our tests include dimensional checks, hardness tests, and corrosion resistance assessments to guarantee reliable performance. In addition, we carry out third-party inspection to give our customers added assurance of the product quality. We make sure efficient delivery to meet all the orders so that our customers can receive their products on time and without faults.
Stainless Steel 446 Stud Bolts are perfect for industrial furnaces, heat treating equipment, kiln linings, and boiler components where high temperatures and scaling are a constant challenge. In the petrochemical sector, they find use in reformer tubes, radiant tubes, and combustion chambers. SS 446 is also utilized in incinerators, cement kilns, and fluidized bed combustors for securing refractory linings and structural supports. Its exceptional resistance to sulfidation and oxidation makes it a vital choice in thermal processing applications.
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