Weston Stainless, having a presence in Midland, UK, is a reputed supplier of top–grade stainless steel products, offering robust and corrosion-resistant solutions for industrial applications. One of its products, Stainless Steel 446 Nuts, stands out due to its superior resistance towards high-temperature, oxidation stability, and mechanical properties. Being categorized as Grade 446, the nuts are supplied in various shapes and sizes such as hex, square, and heavy-duty. Made of ferritic stainless steel, they present higher strength, heat resistance, and corrosion protection, hence suitable for applications under harsh temperature conditions and for long-term performance applications.
446 Stainless Steel Nuts contain major amounts of iron and high percentages of chromium (23-27%) to provide added oxidation and corrosion resistance. In addition, they have minute proportions of carbon, manganese, silicon, and trace elements for increased mechanical strength. These nuts possess a tensile strength of about 550 MPa, yield strength of about 310 MPa, and elongation of 20%, providing strong performance under stress. Their physical characteristics are a density of about 7.7 g/cm³ and high thermal conductivity, which makes them ideal for use in applications exposed to high temperatures and harsh environments.
| 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.
446 Stainless Steel Nuts are extensively utilized in applications that involve high-temperature and corrosion-resistant nuts, e.g., power plants, heat exchangers, and furnace parts. They find important applications in petrochemical complexes, cement plants, and incinerators because of their capacity to resist oxidation and scaling at elevated temperatures. They also find widespread applications in exhaust systems, refractory anchoring systems, and other thermal processing units. Their advanced durability, good mechanical stability, and heat resistance make them suitable for harsh industrial uses.
Stainless Steel 446 Nuts are accompanied with mill test certificates like EN 10204 3.1 or 3.2 to guarantee conformity to international quality standards. They are safely packaged in wooden crates, bubble wraps, or plastic-capped ends to protect against damage during shipping. Delivery timelines depend on order quantity and destination, with effective logistics ensuring punctual shipping. Special packaging arrangements are made available on request to suit individual customer needs, with the nuts reaching the customer in ideal condition.
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