Ohmalloy Material Co.,Ltd
| Payment Terms | L/C, D/A, D/P, T/T, |
| Supply Ability | 5000 KG per month |
| Delivery Time | 15 working days |
| Packaging Details | Spool or Coil + Waterproof paper + Wooden case |
| Material | CuNi alloy |
| Application | precision resistors |
| Annealing Treatment | In Vacuum Furnace |
| Condition | Soft,bright |
| Thickness | 0.5mm |
| Width | 7mm |
| Surface | Bright |
| Density | 8.9 g/cm3 |
| Elongation | more than 15% |
| Package | Spool, Coil, Wooden case |
| Brand Name | OHMALLOY |
| Model Number | Hecnum |
| Certification | SGS, ISO, RoHS |
| Place of Origin | China(Shanghai) |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, | Supply Ability | 5000 KG per month |
| Delivery Time | 15 working days | Packaging Details | Spool or Coil + Waterproof paper + Wooden case |
| Material | CuNi alloy | Application | precision resistors |
| Annealing Treatment | In Vacuum Furnace | Condition | Soft,bright |
| Thickness | 0.5mm | Width | 7mm |
| Surface | Bright | Density | 8.9 g/cm3 |
| Elongation | more than 15% | Package | Spool, Coil, Wooden case |
| Brand Name | OHMALLOY | Model Number | Hecnum |
| Certification | SGS, ISO, RoHS | Place of Origin | China(Shanghai) |
| High Light | copper alloys ，copper nickel alloy | ||
High quality Bright 0.5mm*7.0mm Copper Nickel alloy Hecnum Strip
(Common Name:CuNi44,NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.)
CuNi44 is a copper-nickel alloy (Cu56Ni44 alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 400°C
Typical applications for CuNi44 are temperature-stable potentiometers, industrial rheostats and electric motor starter resistances.
The combination of negligible temperature coefficient and high resistivity makes the alloy particulary suitable for the winding of precision resistors.
CuNi44 is manufactured from electrolytic copper and pure nickel. In finer wire sizes the alloy is designated as CuNi44TC(Thermocouple).
| Nickel | 44 | Manganese | 1 |
| Copper | Bal. |
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 250 | 420 | 25 |
| Density (g/cm3) | 8.9 |
| Electrical resistivity at 20℃ (Ωmm2/m) | 0.49 |
| Temperature factor of resistivity(20℃~600℃)X10-5/℃ | -6 |
| Conductivity coefficient at 20℃ (WmK) | 23 |
| EMF vs Cu(μV/℃ )(0~100℃ ) | -43 |
|
Coefficient of thermal expansion | |
| Temperature | Thermal Expansion x10-6/K |
| 20 ℃- 400℃ | 15 |
| Specific heat capacity | |
| Temperature | 20℃ |
| J/gK | 0.41 |
| Melting point (℃) | 1280 |
| Max continuous operating temperature in air (℃) | 400 |
| Magnetic properties | non-magnetic |
Corrosion resistance performance
| Alloys | Working In atmosphere at 20℃ | Working at max temperature 200℃ | |||||
| Air and oxygen contain gases | gases with Nitrogen | gases with sulfur oxidability | gases with sulfur reductibility | carburization | |||
| CuNi44 | good | good | good | good | bad | good | |
Style of supply
| Alloys Name | Type | Dimension | ||
| CuNi44W | Wire | D=0.03mm~8mm | ||
| CuNi44R | Ribbon | W=0.4~40 | T=0.03~2.9mm | |
| CuNi44S | Strip | W=8~200mm | T=0.1~3.0 | |
| CuNi44F | Foil | W=6~120mm | T=0.003~0.1 | |
| CuNi44B | Bar | Dia=8~100mm | L=50~1000 | |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
2008
Total Annual:
4000000-6000000
Employee Number:
20~50
Ecer Certification：
Verified Supplier
Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy. Ohmalloy Material Co.,Ltd have a full production line from melting, surface... Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy. Ohmalloy Material Co.,Ltd have a full production line from melting, surface...
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