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Harsh Metalloys, located in Mumbai, India, stands out as a top manufacturer and supplier of high-quality Stainless Steel 446 Stud Bolts, specifically crafted for high-temperature and highly corrosive settings. Grade 446 is a ferritic stainless steel celebrated for its exceptional oxidation and heat resistance, making it a perfect fit for furnace, thermal, and industrial processing applications. Our 446 stud bolts are produced to meet precise standards like ASTM A193 and come in a variety of lengths, diameters, and thread configurations. Harsh Metalloys is committed to providing durable fastening solutions that are trusted across industries such as petrochemical, power generation, metallurgical processing, and heat treatment.
Stainless Steel 446 Stud Bolts are made up of 23–27% Chromium, along with low carbon and small amounts of silicon, manganese, and molybdenum. This type of ferritic stainless steel is known for its outstanding resistance to oxidation, sulfidation, and scaling, even at temperatures reaching up to 1100°C (2012°F). These stud bolts have a tensile strength of about 430 MPa (62 ksi) and a yield strength of roughly 275 MPa (40 ksi), ensuring good dimensional stability when exposed to heat. While 446 isn’t as ductile or easy to weld as austenitic steels, its impressive strength and performance at high temperatures make it a great choice for bolted connections in tough service conditions.
| 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.
These 446 heavy stud bolts are crafted for high-load, high-heat applications, ensuring reliable performance in boilers, reactors, and other challenging industrial environments.
The 446 double end stud bolts ensure secure connections in high-temperature systems, making them perfect for flange assembly in refineries, power plants, and heat treatment equipment.
Stainless Steel 446 Stud Bolts are a go-to choice in industries that demand strong resistance to heat and corrosive gases. You’ll often find them in applications like furnace linings, heat exchangers, boiler equipment, incinerators, and high-temperature exhaust systems. These bolts are perfect for holding together components in thermal processing units, petrochemical plants, and refineries, especially in environments where sulfur compounds and high-temperature oxidation are a concern. Their impressive ability to withstand scaling and deformation at high temperatures guarantees a secure and durable joint in critical settings. With 446 stud bolts, you can count on reliable performance in bolted assemblies that need both mechanical strength and heat resistance.
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