Adam Stainless, a top-notch manufacturer and supplier located in Canberra, Australia, is all about high-quality Stainless Steel 446 Nuts that meet strict industrial standards. These nuts are celebrated for their remarkable corrosion resistance, durability, and ability to perform under high temperatures. Crafted with precision, they provide reliable fastening solutions across a variety of industries. Adam Stainless blends cutting-edge manufacturing techniques with thorough quality control to ensure their products deliver strength, longevity, and top-notch performance. Catering to clients in the automotive, aerospace, chemical, and construction sectors, the company guarantees that every Stainless Steel 446 Nut complies with both domestic and international standards, making it a go-to choice.
Stainless Steel 446 Nuts are primarily made of iron, featuring around 23–27% chromium, 1–2% nickel, and very little carbon, which gives them their ferritic properties. They boast excellent resistance to oxidation and scaling at high temperatures, along with impressive hardness and tensile strength. Their mechanical properties include high yield strength, good creep resistance, and stability under stress. With low thermal expansion and resistance to pitting, they’re perfect for demanding applications. These nuts can handle corrosive environments while maintaining their structural integrity, ensuring dependable fastening even in tough 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.
Adam Stainless offers high quality Stainless Steel 446 Nuts that have consistently passed a whole array of tests that include hardness testing, spectro analysis, PMI, and flaring tests. Micro and macro tests, pitting resistance, and IGC tests are carried out to ensure every material sold by us meets high standards of quality. In addition, the full documentary coverage, complete with commercial invoice and packaging lists stating net/gross weights of box numbers along with labels and the legalized/attested certificate of origin provided, along with Third-Party Inspection Certificates, gives one absolute assurance as regards our quest to provide excellence and unparalleled customers satisfaction.
Stainless Steel 446 Nuts are commonly found in high-temperature and corrosive settings where standard nuts just won’t cut it. You’ll often see them in exhaust systems, furnace assemblies, petrochemical plants, power generation, and marine equipment. They’re ideal for securing components in chemical processing, oil and gas, and high-temperature industrial machinery. Their ability to resist scaling and oxidation means they can perform in extreme heat without losing shape. In construction, they provide reliable structural connections for outdoor applications.







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