MERIH STAINLESS, located in Istanbul, Turkey, is a reliable manufacturer and supplier of Stainless Steel 440B nuts. These nuts are known for their high strength, wear resistance, and ability to withstand corrosion, making them perfect for tough industrial applications. Thanks to cutting-edge production technology and rigorous quality control, MERIH STAINLESS guarantees that every nut meets international standards for precision, mechanical performance, and durability. Designed to perform reliably in high-stress environments and at elevated temperatures, Stainless Steel 440B nuts come in a variety of sizes and specifications. They are commonly used in the aerospace, automotive, chemical, and engineering sectors, providing dependable performance for critical applications.
Made from high-carbon martensitic stainless steel, Stainless Steel 440B nuts contain about 17–18% chromium and 0.75–0.95% carbon. This unique blend gives them impressive hardness, tensile strength, and wear resistance, while still offering moderate corrosion resistance. The martensitic structure allows for heat treatment, which enhances their toughness, fatigue resistance, and overall mechanical performance. These nuts maintain their shape and provide reliable fastening even under heavy loads, friction, and high temperatures, making them ideal for demanding industrial and engineering tasks.
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.
Stainless Steel 440B nuts are popular in industries that demand high strength, durability, and resistance to corrosion. They are perfect for precision machinery, automotive parts, aerospace fasteners, valves, and pump assemblies. Additionally, they are used in tooling, chemical processing, and high-wear industrial settings. Their outstanding fatigue resistance, wear performance, and long service life help minimize maintenance needs, ensuring reliable and efficient operation. For fastening critical components in harsh industrial and engineering environments, Stainless Steel 440B nuts are the go-to choice.
The use of stainless steel 440B nuts is suitable for applications demanding high strength and durability. The heavy industrial application, automotive parts, and high-stress machinery find these nuts as ideal for such applications. With excellent hardness and resistance to damage, these are used in valve assemblies, pump components, and other critical components exposed to harsh conditions besides equipment where they are applied to high performance components and equipment where strength and resistance are in demand.
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