Copper Nickel 90 / 10 Washers have excellent properties of fabricability. They have elements such as manganese and niobium content, chromium, and iron content in their chemical composition. These elements present in their composition make these fasteners even more resistant to corrosion and improve their strength. These Copper Nickel 90 / 10 Washers are also cost-friendly.
Copper Nickel 90 / 10 Washers also provide excellent mechanical properties to high temperatures, and these are therefore better as compared to the other fasteners. The Copper-Nickel 70 / 30 Washers are comparatively better than the other chromium-nickel austenitic alloys when it comes to being resistant to corrosion.
Also, these Copper-Nickel 70 / 30 Fasteners undergo a series of tests to test and enhance their quality. As these Copper-Nickel 70 / 30 Fasteners have excellent mechanical properties and other characteristics, they are used in a wide range of industrial applications. All the necessary norms and standards are also taken into consideration while manufacturing these fasteners.
| Specification | ASTM B 151 ASME SB 151 |
| Standard | DIN, ASTM, BS and all International Standards |
| Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Length | 3 mm to 200 mm | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration |
ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc. |
| Packing | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
| Surface Coating |
Cadmium Coating Hot Dipped Galvanizing Coating Ptfe Coated Phosphate Coating Teflon Coating Xylon Coating Zinc Coating |
| STANDARD | WERKSTOFF NR. | UNS |
| Cupro Nickel 90/10 | 2.0872 | C70600 |
| Cupro Nickel 70/30 | 2.0882 | C71500 |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cupro Nickel 90/10 | 88.6 min | 1.0 max | 0.05 max | 9-11 max | 1.8 max | 1 max |
| Cupro Nickel 70/30 | 65 min | 1.0 max | 0.05 max | 29-33 max | 0.4-1.0 max | 1 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Cupro Nickel 90/10 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| Cupro Nickel 70/30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
