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200-260HB Hardness Copper and Nickel Alloy , Copper Beryllium Wire for Resistance Element
Product Description
Constantan and Manganin 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.
Constantan
Chemical Content, %
Ni | Mn | Fe | Si | Cu | Other | ROHS Directive | |||
Cd | Pb | Hg | Cr | ||||||
44 | 1.50% | 0.5 | - | Bal | - | ND | ND | ND | ND |
Mechanical Properties
Max Continuous Service Temp | 400 |
Resisivity at 20 | 0.49±5%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 |
Manganin
Chemical Content, %
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Contact Infomation
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Company name:Shanghai Tankii Alloy Material Co.,Ltd,
Status:[Offline] [Send message] [Chat] Business contact:Martin Lee (Ms.) Telphone:  Mobile:  Fax:  Area: Caribbean Region-Bermuda  Address:Buliding 6, No 388, Pangu Road, Baoshan district, Shanghai Zip:200000 |