Strain Resistance Precision Alloy Wire CuNi40 Copper Nickel Alloy Constantan Wire
CuNi40 Copper nickel alloy Constantan wire resistance alloy wire Apply to strain resistance
CuNi40
Constantan is CuNi40,also named 6J40,it is a resistance alloy which is mainly made up of copper and nickel.
It has the low resistance temperature coefficient,wide working temperature scope(500 below),good machiningproperty,anti-corrosive and easy braze welding.
The alloy is non-magnetic. It is used for electrical regenerator's variable resistor and the strain resistor,
potentiometers, heating wires, heating cables and mats. Ribbons are used for heating of bimetals. Another field of application is manufacturing of thermocouples because it develops a high electromotive force (EMF) in association with others metals.
Copper nickel alloy series:Constantan CuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23,CuNi30, CuNi34, CuNi44.
Size dimension range:
Wire: 0.018-10mm
Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.05*5.0-5.0*250mm
Chemical Composition:
| Name | Code | Main Composition (%) | ||
| Cu | Mn | Ni | ||
| Constantan | 6J40 | Bal. | 1-2 | 39-41 |
Physical Properties:
| Name | Code | Density (g/mm2) | Max. Working Temp.(º C ) |
| Constantan | 6J40 | 8.9 | ≤500 |
Mechanical Properties:
| Name | Type | Resistivity (μ Ω. M) (20º C ) | Temp. Coff. of Resistance (α×10-6/°C) (20º C ) | Thermal EMF vs. Copper (μV/º C )(0-100º C ) | Elongation (%) | Tensile Strength (Mpa) |
| Constantan | 6J40 | 0.48 ±0.03 | 40 | 45 | ≥15 | ≥390 |
Company Information:
which was founded in 2002, has become high-tech company that is specialized in producing high-temperature alloy, welding wire,corrosion resistance alloy, precision alloy, NiCr alloy, CuNi alloy and FeCrAl alloy through twenty years untiring efforts,and win a high-reputation in domestic and oversea market.
FeCrAl alloy series: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2, and etc
NiCr alloy series: Cr20Ni80,Cr30Ni70,Cr20Ni35,Cr20Ni30,Cr15Ni60 and etc.
CuNi series: CuNi1,CuNi2,CuNi6,CuNi10,CuNi23,CuNi30,CuNi44,Monel400,Constantan and etc.
High_temperature alloy series: GH131,GH140,GH36,GH2706,GH2901,GH3625,GH3536,GH4169 and etc.
Welding wire series:HGH2132,HGH1040,HGH3030,HGH4033,ER6040.ERNi-1,ERNiCrMo-3 and etc.
Corrosion resistance alloy series: Incoloy800H,Incoloy825,Inconel600,Inconel690,Inconel625 and etc.
Precision alloy series: 1J33,3J1.3J9.4J28.4J29.4J32.4J33.4J36.4J45.4J50 4j52 and etc.
1) Pass ISO9001 and SGS certification.
2) Samples free available.
3) OEM service.
4) Manufacturer test certificate will be provided If necessary.
5) Good packing methods to keep goods safe.
6) Choose safe,quick,price reasonable forwarder to transport for our customers.
7) Short delivery time.
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