Amer Stainless, based in Amman, Jordan, stands out as a top-notch manufacturer and supplier of high-quality Stainless Steel 440B Nuts, catering to a variety of industrial, mechanical, and engineering sectors. With a reputation for precision engineering and rigorous quality control, Amer Stainless guarantees that each 440B nut adheres to international standards for strength, durability, and reliability. The company utilizes cutting-edge manufacturing techniques to create nuts that consistently perform well in challenging environments. By prioritizing timely delivery, technical know-how, and customer satisfaction, Amer Stainless has earned its place as a trusted source for stainless steel fastening solutions in critical industrial applications.
Stainless Steel 440B Nuts are crafted from a high-carbon martensitic stainless steel alloy, specifically designed to provide outstanding strength, hardness, and moderate resistance to corrosion. Their makeup features a balanced mix of carbon and high chromium levels, along with trace amounts of manganese and silicon to boost mechanical stability and durability. These nuts showcase impressive tensile strength, dependable hardness post-heat treatment, and resistance to wear and tear. Their strong mechanical properties make them perfect for applications that require secure fastening, load-bearing capabilities, and long-lasting performance under pressure.
C | Si | Mn | P | S | N | Cr | Cu | Mo | Ni | Ti | V |
|---|---|---|---|---|---|---|---|---|---|---|---|
0.75 – 0.95 | – | – | – | – | – | 16.00 – 18.00 | – | 0.90 – 1.30 | – | – | 0.07 – 0.12 |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed* | 758 | 448 | 14 | 269HB max | – |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 316 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.74 g/cm3 | 0.280 lb/in³ |
| Melting point | 1482°C | 2700°F |
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A corrosion-resistant product, Stainless Steel 440B nuts are available in sizes from M6 to M64. Known for their high strength and hardness, they are ideal for heavy-duty applications in industrial machinery and automotive components.
A corrosion-resistant product, Stainless Steel 440B coupling nuts, used to join two male threads, come in sizes from M6 to M36. They provide exceptional strength and durability, making them suitable for high-stress and heavy-duty applications.
A corrosion-resistant product, Stainless Steel 440B nylon insert nuts, or lock nuts, are available in sizes from M3 to M36. The nylon insert prevents loosening under vibration, offering secure fastening in high-strength and demanding environments.
A corrosion-resistant product, Stainless Steel 440B flange hex nuts feature an integrated flange and come in sizes from M5 to M20. They provide enhanced load distribution and stability, suitable for high-stress and high-temperature applications.
A corrosion-resistant product, Stainless Steel 440B heavy hex nuts are available in sizes from M10 to M48. Their increased thickness and strength make them ideal for heavy-duty applications and high-stress environments requiring robust and secure fastening.
A corrosion-resistant product, Stainless Steel 440B square nuts offer a larger contact surface and come in sizes from M6 to M30. They are ideal for high-strength applications requiring reliable performance in heavy clamping and industrial settings.
Amer Stainless ensures high-quality materials with a string of tests for excellence. Stainless Steel 440B Nut goes through proper checks such as hardness testing, spectrochemical analysis, PMI testing, tensile testing, micro and macro structural tests, pitting resistance, and IGC testing. We assure high performance through these strict checks. Supporting our commitment to quality, we provide documentation, such as commercial invoices, packing lists, labels, Certificates of Origin, and Third-Party Inspection Certificates, for customer satisfaction on pricing, delivery, and reliability of the products.
Stainless Steel 440B Nuts find their place in various applications that demand strength, durability, and wear resistance. They’re frequently used in the automotive, aerospace, defense, and heavy machinery sectors, where components face mechanical stress, vibrations, and moderate corrosion. These nuts are ideal for securing pumps, valves, turbines, precision instruments, and high-performance equipment, ensuring stable and reliable fastening. Thanks to their hardness, dimensional stability, and moderate corrosion resistance, Stainless Steel 440B Nuts are a fantastic choice for critical assemblies and industrial settings that require long-lasting, trustworthy performance.







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