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| Brand Name : | OHMALLOY/OEM |
| Model Number : | SP-CuNi14 |
| Certification : | ISO9001:2015 |
| Price : | |
| Payment Terms : | L/C, T/T, , Paypal |
| Supply Ability : | 40000 KG per month |
| Delivery Time : | 5-16 working days after payment confirmed |
CuNi19 NC025 Nickel Alloy Rod Strip Wire Valves Precision Resistance Parts Material
OhmAlloy025 (Resistance heating wire and resistance wire)
(Common Name:CuNi19,NC25)
OhmAlloy025 is a copper-nickel alloy (Cu81Ni19 alloy) with low resistivity for use at temperatures up to 300°C.
The ductility of copper-nickel alloy is very good, so it can be used in shipbuilding and petrochemical industry. Some electrical appliances and meters also use the ductility of copper-nickel alloys to manufacture parts. Copper-nickel alloys are mostly used in industrial production. Some valves and some precision resistance parts will be made of copper-nickel alloys.
Copper Nickel Alloy Production Standard(GB/T1234-95)
| Performance Brand | NC020 CuNi14 | NC025 CuNi19 | NC030 CuNi23 | NC035 CuNi30 | NC040 CuNi34 | NC050 CuNi44 | |
| Main Chemical Content% | Ni | 14.2 | 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. | |
| Element Max Working Temperature℃ | 300 | 300 | 300 | 350 | 350 | 400 | |
| Density g/cm3 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | |
| Resistivity Ωmm2/m, at 20℃ | 0.20±5% | 0.25±5% | 0.30±5% | 0.35±5% | 0.40±5% | 0.49±5% | |
Temperature factor of resistivity 10-5/℃(200-600℃) | <38 | <25 | <16 | <10 | -0 | <-6 | |
| Melting Point ℃ | 1115 | 1135 | 1150 | 1170 | 1180 | 1280 | |
| Tensile Strength MPa | ≥310 | ≥340 | ≥350 | ≥400 | ≥400 | ≥420 | |
| Enlogation%(>1.0) | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | |
| EMF VS Copper V/℃(0-100℃) | -28 | -32 | -34 | -37 | -39 | -43 | |
| Specific heat capacity j/gk(20℃) | 0.38 | 0.38 | 0.38 | 0.39 | 0.40 | 0.41 | |
| Conductivity coefficient w/mk at20℃ | 48 | 38 | 33 | 27 | 25 | 23 | |
| Organizational attribute | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic | |
| Magnetic | None-Magnetic | None-Magnetic | None-Magnetic | None-Magnetic | None-Magnetic | None-Magnetic | |
Style of supply
| Alloys Name | Type | Dimension | ||
| OhmAlloy025W | Wire | D=0.06mm~8mm | ||
| OhmAlloy025R | Ribbon | W=0.4~40 | T=0.05~2.9mm | |
| OhmAlloy025S | Strip | W=8~200mm | T=0.1~3.0 | |
| OhmAlloy025F | Foil | W=6~120mm | T=0.005~0.1 | |
| OhmAlloy025B | Bar | Dia=8~100mm | L=50~1000 | |
CuNi19 NC025 Copper Nickel Alloy Application


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