Request For Our Latest Prices On Stainless Steel 446 Bolts in Delhi, India!
Punit Fasteners, a well-respected manufacturer and supplier located in Delhi, India, specializes in high-quality Stainless Steel 446 Bolts that are built to endure extreme temperatures, scaling, and oxidizing environments. These bolts find their place in various industries, including petrochemical, furnace construction, power generation, and heat treatment, where components face harsh thermal and corrosive conditions. Crafted to meet international standards, Stainless Steel 446 Bolts offer outstanding thermal stability, oxidation resistance, and durability. Punit Fasteners is committed to precision engineering, ensuring these bolts provide a long service life and serve as a reliable fastening solution for demanding industrial applications.
Made from a high-chromium ferritic stainless steel that contains around 23–27% chromium, along with small amounts of molybdenum and stabilizing elements, these bolts are designed for enhanced heat and oxidation resistance. They can handle temperatures up to 1100°C while maintaining their strength and dimensional stability. With a tensile strength ranging from 485–620 MPa and a density of about 7.8 g/cm³, they may be less ductile than austenitic grades, but their exceptional resistance to scaling, sulfurous gases, and thermal cycling makes them ideal for tough industrial tasks.
| 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 widely utilized in industries where fastening components must withstand high temperatures and corrosive environments. In furnace construction and heat treatment facilities, they secure parts that are constantly exposed to hot gases and oxidizing conditions. The petrochemical and power generation industries depend on them for applications like burners, exhaust systems, and thermal processing units. Additionally, they are used in incinerators, kilns, chemical plants, and heat exchangers, where resistance to sulfurous gases, oxidation, and scaling is crucial. These bolts provide dependable fastening solutions in settings where standard stainless steels simply can’t keep up.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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