|
[China]
Trade Verify
Address: No. 388 Pangu Road, Baoshan district, Shanghai, 201999, China
Contact name:Martin Lee
Shanghai Tankii Alloy Material Co.,Ltd |
|
Verified Suppliers
|
|
|
2. Product Description
Constantan is a copper-nickel alloy that contains specific minor amounts of additional elements to achieve precise values for the temperature coefficient of resistivity. Careful control of melting and conversion practices results in a very low level of pinholes at ultra-thin thicknesses. The alloy is used extensively for foil resistors and strain gauges.
Chemical Content, %
Product Details:
Grade: 6J40 also known as cuni40
Nature: With 40% nickel, 1.5% copper manganese alloy
Mechanical Properties
Max Continuous Service Temp | 400℃ |
Resisivity at 20℃ | 0.48±3%ohm mm2/m |
Density | 8.9 g/cm3 |
Thermal Conductivity | -6(Max) |
Melting Point | 1280℃ |
Tensile Strength,N/mm2 Annealed,Soft | 340~535 Mpa |
Tensile Strength,N/mm3 Cold Rolled | 680~1070 Mpa |
Elongation(anneal) | 25%(Min) |
Elongation(cold rolled) | ≥Min)2%(Min) |
EMF vs Cu, μV/ºC (0~100ºC) | -43 |
Micrographic Structure | austenite |
Magnetic Property | Non |
TCR | -40~+40 |
CuNi Alloy
Charact eristic | Resistivity ( 200C μΩ.m) | Max.working Temperature ( 0C) | Tensile Strength (Mpa) | Melting point (0C) | Density ( g/cm3) | TCR x10-6/ 0C (20~600 0C) | EMF vs Cu (μV/ 0C) (0~100 0C) |
Alloy Nomenc lature | |||||||
NC003 (CuNi1) | 0.03 | 200 | 210 | 1085 | 8.9 | <100 | -8 |
NC005 (CuNi2) | 0.05 | 200 | 220 | 1090 | 8.9 | <120 | -12 |
NC010 (CuNi6) | 0.1 | 220 | 250 | 1095 | 8.9 | <60 | -18 |
NC012 (CuNi8) | 0.12 | 250 | 270 | 1097 | 8.9 | <57 | -22 |
NC015 (CuNi10) | 0.15 | 250 | 290 | 1100 | 8.9 | <50 | -25 |
NC020 (CuNi14) | 0.2 | 300 | 310 | 1115 | 8.9 | <30 | -28 |
NC025 (CuNi19) | 0.25 | 300 | 340 | 1135 | 8.9 | <25 | -32 |
NC030 (CuNi23) | 0.3 | 300 | 350 | 1150 | 8.9 | <16 | -34 |
NC035 (CuNi30) | 0.35 | 350 | 400 | 1170 | 8.9 | <10 | -37 |
NC040 (CuNi34) | 0.4 | 350 | 400 | 1180 | 8.9 | 0 | -39 |
NC050 (CuNi44) | 0.5 | 400 | 420 | 1200 | 8.9 | <-6 | -43 |
Constantan Tradenames:
Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45,
Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan
Resistance Alloy- Constantan Sizes / Temper Capabilities
1; Condition: Bright, Annealed, Soft
2; Wire diameter 0.02mm-1.0mm packing in spool, big than 1.0mm
packing in coil
3; Rod, Bar diameter 1mm-30mm
4; Strip: Thickness 0.05mm-7mm, Width 1mm-280mm
