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The Fasteners Mart, founded in Mumbai, India, is a leading fastener manufacturer and exporter of top-quality industrial fasteners. It is dedicated to providing high-quality products and the best customer services and serves various industries such as automotive, aerospace, oil & gas, and construction. Providing a vast array of standard and specialized fastening solutions, The Fasteners Mart provides products to global standards for strength, precision, and durability. Its offerings consist of bolts, nuts, washers, and specialty fasteners, establishing it as a well-known brand in the fastening market.
Stainless Steel 440B Nuts contain mostly Carbon (0.75–0.95%), Chromium (16–18%), Manganese (≤1%), and Silicon (≤1%), with Iron being the base material. The nuts provide good tensile strength, superior hardness (up to 58 HRC), and moderate corrosion resistance. Having a density of 7.75 g/cm³ and a melting point range of 1480–1530°C, they are good in high mechanical stress and moderate corrosive conditions. Their mechanical strength is also increased by heat treatment, and hence they are well suited for precision fastening in heavy-duty usage with dimensional stability and durability.
| 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 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 440B Nuts find extensive application in situations requiring high strength, hardness, and wear resistance. They are best suited for aerospace assemblies, automotive engines, heavy machinery, and high-speed tooling systems. They can also be used in medical devices, industrial valves, pumps, and molds, where consistent performance and durability are essential. In other uses such as naval hardware and defense equipment, 440B nuts provide consistent fastening in relatively corrosive and high-friction conditions. Being heat-treatable, they retain their strength under harsh mechanical and thermal loads.
The Fasteners Mart provides assured and safe shipment of Stainless Steel 440B Nuts anywhere in the world. Products are packaged in moisture-proof and impact-resistant materials like sealed polybags, cartons, and wooden crates to achieve damage-free transit. Customized labeling, quantity-specific packaging, and bulk shipments are available according to client requirements while ensuring product integrity and prompt dispatch.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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