Niazi Stainless, a top-notch manufacturer and supplier based in Manama, Bahrain, specializes in high-quality Stainless Steel 440B Nuts that are built for exceptional strength, wear resistance, and durability, especially in tough industrial settings. With a reputation for precision manufacturing and a commitment to international standards, Niazi Stainless guarantees that each nut performs reliably even in high-stress and moderately corrosive environments. Their SS 440B Nuts are perfect for industries that demand high mechanical reliability, hardness, and a long service life. Catering to sectors like automotive, aerospace, tooling, and mechanical engineering, Niazi Stainless has made a name for itself as a trusted source of premium stainless steel fastening solutions throughout Bahrain and the GCC region.
These Stainless Steel 440B Nuts are crafted from high-carbon martensitic stainless steel, which contains around 16–18% chromium and 0.75–0.95% carbon, along with trace amounts of manganese and silicon to boost mechanical strength and corrosion resistance. After heat treatment, these nuts showcase impressive tensile strength, hardness, and wear resistance. SS 440B also offers good dimensional stability and moderate corrosion resistance, making it a great choice for precision applications and high-stress mechanical environments. The blend of toughness and hardness ensures dependable performance in demanding industrial conditions.
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.
Niazi 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 way into various applications that require high strength, durability, and wear resistance. They’re commonly used in automotive assemblies, aerospace components, industrial machinery, and tooling equipment where precision and reliability are paramount. Additionally, these nuts are utilized in pump shafts, valve assemblies, gears, and mechanical parts that face moderate stress and repetitive loading. SS 440B Nuts deliver outstanding performance, a long service life, and resistance to deformation under high stress. Their unique combination of strength, hardness, and reliability makes them the go-to choice for demanding industrial, automotive, and engineering applications.
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