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Ramu Fasteners is a trusted name in Hyderabad for manufacturing and supplying Stainless Steel 446 Bolts, offering top-notch fastening solutions designed to withstand extreme conditions. Thanks to their cutting-edge manufacturing processes and rigorous quality control, they ensure that their bolts meet both international standards and the specific needs of their customers. These Stainless Steel 446 Bolts are crafted for outstanding oxidation resistance and strength, even at high temperatures. Available in a variety of sizes, thread types, and finishes, they are a go-to choice for industries that demand durability, heat resistance, and long-lasting reliability in tough environments.
Stainless Steel 446 is a high-chromium ferritic stainless steel that contains around 23–27% chromium and has very low carbon content. This unique composition gives it remarkable resistance to oxidation, scaling, and corrosion, especially at elevated temperatures. SS 446 Bolts boast impressive tensile strength, excellent thermal stability, and the ability to withstand sulfur-rich atmospheres. While they may not be as ductile as austenitic grades, these bolts retain their strength and structural integrity even under continuous high-temperature conditions, making them perfect for heat-intensive applications.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 446 | min. | – | – | – | – | – | 23.0 | – | – | 0.10 |
| max. | 0.2 | 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 |
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts. |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless steel 446 bolts are widely used in high-temperature applications, such as furnace components, heat exchangers, and oven components, due to their excellent oxidation and corrosion resistance. Applications in electricity generation, chemical manufacturing and petrochemical industries for the occurrence of equipment exposed to extreme weather conditions. Their excellent strength and durability make them suitable for marine applications and industrial boilers, providing reliable performance in extreme conditions.
Stainless Steel 446 Bolts are mainly utilized in environments that are both high-temperature and corrosive. You’ll often find them in furnace components, heat exchangers, boilers, kilns, and equipment used in petrochemical processing. They also play a crucial role in power generation plants, thermal processing units, and refinery systems where resistance to oxidation is essential. SS 446 Bolts excel in sulfur-rich and scaling environments, ensuring secure fastening even in extreme heat. Their durability and resistance to thermal degradation make them an excellent choice for long-term use in industrial applications.
Ramu Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hyderabad, India, with over 8 years of experience serving global industries.
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