Harshita Stainless deals with Stainless Steel 446 Nuts in Delhi, India, that find applications in high-temperature and corrosion-resistant environments. These nuts are manufactured from alloy SS 446 and exhibit good performance in power generation, marine, and chemical environments. The nuts come with hex and flange types with threaded variants as per ISO/ASTM standards. Harshita Stainless provides accurate dimensions and material integrity for mechanical performance, serving applications where high-temperature-resistant fasteners are needed.
SS 446 is a ferritic alloy stainless steel containing ~23% chromium and negligible nickel (<1%). Nuts have tensile strength of 380–480 MPa with excellent creep resistance at up to 800 °C. The nuts are very resistant to oxidation and stress corrosion cracking. The high chromium content in the alloy gives them resistance in hot–steam and flue gas environments. The nuts show low thermal expansion as well as dimensional stability under high heat conditions.
| 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 nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| 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 |
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A corrosion-resistant product, Stainless Steel 446 nuts are available in sizes from M6 to M64. They offer excellent high-temperature oxidation resistance, making them suitable for industrial applications like furnace components and exhaust systems.
A corrosion-resistant product, Stainless Steel 446 coupling nuts, available in sizes from M6 to M36, connect two male threads securely. Their high chromium content ensures durability in high-temperature and corrosive environments.
A corrosion-resistant product, Stainless Steel 446 nylon insert nuts, or lock nuts, come in sizes from M3 to M36. The nylon insert prevents loosening under vibration, while the alloy’s resistance to scaling suits high-temperature applications.
A corrosion-resistant product, Stainless Steel 446 flange hex nuts feature an integrated flange and are available in sizes from M5 to M20. They provide even load distribution and stability in high-temperature environments.
A corrosion-resistant product, Stainless Steel 446 heavy hex nuts are available in sizes from M10 to M48. Their increased thickness and chromium content make them ideal for heavy-duty applications in extreme temperatures.
A corrosion-resistant product, Stainless Steel 446 square nuts come in sizes from M6 to M30. They offer a larger contact surface for secure fastening and stability in high-temperature and harsh industrial conditions.
SS 446 Nuts find application in boilers, heat exchangers, petrochemical processing, power generation plants, and marine exhaust systems, particularly where stability at high temperatures is of importance. They secure connections in steel structures exposed to flue gases, hot steam, or stack service. Harshita Stainless exports SS 446 nuts throughout Delhi and India for high-temperature couples that demand resistance to oxidation and mechanical soundness over extended exposure to heat.
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