Home > Stainless Steel 446 Stud Bolts
Stainless Steel 446 Stud Bolts are robust fastening components crafted from ferritic stainless steel, built to withstand the toughest conditions with remarkable durability in high-temperature and corrosive environments. These stud bolts are known for their outstanding resistance to oxidation, scaling, and thermal fatigue, ensuring they maintain their structural integrity even when exposed to temperatures exceeding 1100°C. Their exceptional performance in harsh atmospheres filled with sulfur and chlorine makes them a go-to choice for industries where regular stainless steels just can’t cut it. SS 446 Stud Bolts guarantee secure fastening, a long lifespan, and mechanical stability under heavy loads and fluctuating temperatures, making them perfect for demanding industrial and engineering tasks.
These bolts are made up of about 23–27% chromium, along with trace amounts of carbon, silicon, manganese, sulfur, and a touch of nickel. The high chromium content gives them impressive resistance to oxidation, corrosion, and high-temperature scaling. On the mechanical side, they boast a tensile strength of around 485 MPa and a yield strength of about 275 MPa, along with excellent creep resistance at elevated temperatures. These fasteners maintain their shape, endure thermal cycling, and resist deformation under significant mechanical stress, ensuring reliable performance in challenging industrial settings.
| 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. |
| 446 Stud Bolts Coating |
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| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
| Hastelloy B2 | 0.02 max | 1.0 max | 0.1 max | 0.03 max | 1.0 max | Bal | 1.0 max | 2.0 max | 26 – 30 | 0.04 max |
| 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 |
| 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 | ||
Stainless Steel 446 Stud Bolts find their place in high-temperature and corrosive industrial applications such as furnaces, boilers, kilns, incinerators, and heat treatment equipment. They are frequently used in petrochemical refineries, power generation facilities, chemical processing units, thermal processing systems, and exhaust structures. Their ability to resist sulfide and chloride-rich environments also makes them ideal for refineries, waste treatment plants, and high-temperature piping systems. Additionally, SS 446 Stud Bolts are utilized in gas turbines, industrial burners, refractory equipment, and heat exchangers, delivering exceptional performance across various demanding applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
