Home > Stainless Steel 440b Nuts
Majid Fasteners is a trusted manufacturer and supplier of Stainless Steel 440B Nuts, proudly based in Dubai, UAE. They specialize in delivering top-notch fastening solutions for industries that demand exceptional strength, wear resistance, and reliability. With state-of-the-art manufacturing facilities, strict inspection protocols, and a wealth of engineering expertise, the company guarantees precision-crafted products that adhere to international quality standards. The Stainless Steel 440B Nuts from Majid Fasteners are highly regarded for their outstanding hardness, mechanical performance, and ability to endure tough service conditions. Backed by efficient logistics, competitive pricing, and a commitment to customer service, Majid Fasteners caters to a diverse array of industries, including petrochemical, aerospace, automotive, marine, defense, and heavy engineering.
These Stainless Steel 440B Nuts are made from a high-carbon martensitic stainless steel alloy that includes chromium, carbon, manganese, silicon, phosphorus, and sulfur. This particular grade boasts very high tensile and yield strength, remarkable hardness, and excellent wear and abrasion resistance, especially after heat treatment. SS 440B Nuts offer moderate corrosion resistance in mildly corrosive environments and maintain their strength even at elevated temperatures. They also demonstrate good edge retention and fatigue resistance, making them ideal for applications that involve mechanical stress and impact. However, due to their high hardness, these nuts have limited weldability and require careful machining techniques.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.74 g/cm3 | 0.280 lb/in³ |
| Melting point | 1482°C | 2700°F |
C | Si | Mn | P | S | N | Cr | Cu | Mo | Ni | Ti | V |
|---|---|---|---|---|---|---|---|---|---|---|---|
0,85 – 0,95 | – | – | – | – | – | 17,00 – 19,00 | – | 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 |
Stainless Steel 440B Nuts find extensive use in industrial applications where high performance, durability, and resistance to heavy wear and load are crucial. They’re commonly found in precision machinery, automotive components, power transmission systems, cutting tools, pumps, valves, turbine components, and aerospace assemblies. Additionally, these nuts are well-suited for oil and gas equipment, petrochemical processing plants, marine hardware, and heavy-duty engineering machinery. Thanks to their abrasion resistance, they are a reliable choice for demanding environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
