Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd First Quality, Sincere Service
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CuNi 23 /nickel alloy 30/Cuprothal 30
Copper Nickel 23 or CuNi23Mn is a copper nickel alloy with the addition of Manganese to produce an alloy with a relatively low resistivity but high resistance to oxidation and chemical corrosion. Maximum working temperature is 500 °C. Applications include heating cords and mats
| PropertiesGrade | CuNi1 | CuNi2 | CuNi6 | CuNi8 | CuMn3 | CuNi10 | |
| Main Chemical Composition | Ni | 1 | 2 | 6 | 8 | _ | 10 |
| Mn | _ | _ | _ | _ | 3 | _ | |
| Cu | Bal | Bal | Bal | Bal | Bal | Bal | |
| Max Continuous Service Temperature(oC) | 200 | 200 | 200 | 250 | 200 | 250 | |
| Resisivity at 20oC (Ωmm2/m) | 0.03 | 0.05 | 0.10 | 0.12 | 0.12 | 0.15 | |
| Density(g/cm3) | 8.9 | 8.9 | 8.9 | 8.9 | 8.8 | 8.9 | |
| Thermal Conductivity(α×10-6/oC) | <100 | <120 | <60 | <57 | <38 | <50 | |
| Tensile Strength(Mpa) | ≥210 | ≥220 | ≥250 | ≥270 | ≥290 | ≥290 | |
| EMF vs Cu(μV/oC)(0~100oC) | -8 | -12 | -12 | -22 | _ | -25 | |
| Approximate Melting Point( oC) | 1085 | 1090 | 1095 | 1097 | 1050 | 1100 | |
| Micrographic Structure | austenite | austenite | austenite | austenite | austenite | austenite | |
| Magnetic Property | non | non | non | non | non | non | |
| PropertiesGrade | CuNi14 | CuNi19 | CuNi23 | CuNi30 | CuNi34 | CuNi44 | |
| Main Chemical Composition | Ni | 14 | 19 | 23 | 30 | 34 | 44 |
| Mn | 0.3 | 0.5 | 0.5 | 1.0 | 1.0 | 1.0 | |
| Cu | Bal | Bal | Bal | Bal | Bal | Bal | |
| Max Continuous Service Temperature(oC) | 300 | 300 | 300 | 350 | 350 | 400 | |
| Resisivity at 20oC (Ωmm2/m) | 0.20 | 0.25 | 0.30 | 0.35 | 0.40 | 0.49 | |
| Density(g/cm3) | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | |
| Thermal Conductivity(α×10-6/oC) | <30 | <25 | <16 | <10 | <0 | <-6 | |
| Tensile Strength(Mpa) | ≥310 | ≥340 | ≥350 | ≥400 | ≥400 | ≥420 | |
| EMF vs Cu(μV/oC)(0~100oC) | -28 | -32 | -34 | -37 | -39 | -43 | |
| Approximate Melting Point( oC) | 1115 | 1135 | 1150 | 1170 | 1180 | 1280 | |
| Micrographic Structure | austenite | austenite | austenite | austenite | austenite | austenite | |
| Magnetic Property | non | non | non | non | non | non | |