Khaleed Stainless has made a name for itself as a top-notch manufacturer and supplier of Stainless Steel 440B Nuts in Riyadh, Saudi Arabia. We pride ourselves on delivering high-quality fastening solutions that are built to last. Stainless Steel 440B is a high-carbon martensitic stainless steel, celebrated for its impressive hardness, decent corrosion resistance, and wear resistance. Our 440B nuts are meticulously engineered to perform reliably, even in tough industrial settings. At Khaleed Stainless, we ensure that every Stainless Steel 440B Nut meets international quality standards, making them perfect for a variety of applications, including aerospace, petrochemical, automotive, marine, and heavy engineering.
Stainless Steel 440B Nuts are made up of carbon (0.75–0.95%), chromium (16–18%), along with trace amounts of manganese, silicon, and molybdenum. This unique blend boosts their wear resistance, strength, and hardness while still providing reasonable corrosion resistance. These nuts boast a tensile strength of 700–800 MPa, a yield strength of 400–450 MPa, and can reach hardness levels of up to 55 HRC after heat treatment. Their perfect balance of strength and toughness makes them ideal for fastening applications that face mechanical stress, abrasion, and moderately corrosive environments.
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.
Khaleed 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 are a go-to choice wherever secure fastening with high strength and durability is a must. You’ll find them commonly used in the aerospace and automotive industries for engines, gear systems, and heavy assemblies. In the petrochemical and marine sectors, they play a crucial role in pumps, valves, pipelines, and offshore structures. They’re also utilized in heavy engineering, tooling, and medical devices that require precision fastening. With their outstanding hardness and wear resistance, 440B nuts guarantee long-lasting reliability and performance, even under the most demanding operational conditions.
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