Copper Nickel Alloy Foil Constantan Strip/CuNi40 Tape/CuNi44 Alloy
 Basic Info. Copper Nickel Alloy foil Constantan Strip/CuNi40 Tape/CuNi44 Alloy (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 OhmAlloy49 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).  Normal composition%  Typical Mechanical properties(1.0mm)  Typical Physical properties    Corrosion resistance performance good Style of supply
Measuring wheel also called mechanical ranging car or digital distance measuring wheel.it is widely used to measuring distance in professional surveying and mapping work,road engineering, landscape planning and design,golf course and lanes ect.
The instruction of digital measuring wheel
Please read this instruction before you use the product
Thanks you for choosing our product. This instrument is a new length measuring instrument, it is easy to use,stable and reliable.
The main features:
You could convert the unit between metric and foot; The data could be stored and extracted; The touch switch of the digital measuring wheel is anti-water; The handle which could adjust the height of the instrument is easy to apply. The wheel wrapped with rubber could help to avoid slipping so that the measuring data is more precise.
1.The main parts (From up to down):
Handle
Data display panel
Battery cover
Handle lock
Measuring wheel
Kickstand
2. Technical data:
A. It could measure up to 99999.9m/ft.
B. Accuracy:+/- 0.3%
C: Minimal display :0.1m
D: Power supply 3V (2xAAA LR003)
E: Suitable temperature for use : -10c°~45c°
3. Button and Operation
CLR: Clearance
SM : Store the data
ON/OFF: Switch
Rm: Extra the data
M/ft: Conversion between metric and foot
Data display panel
Power supply
The stored data
The displayed data
Metric
Foot
1. ON/OFF : Switch.
2. m/ft: it means the conversion between metric and foot. If you select (m), the displayed data is based on metric. If you select (ft) ,the displayed data is based on foot.
3. SM: Store the data. You could save the data that shows on the display panel by pressing this button. It could store 5 records that respectively show on M1, M2,M3, M4, M5.( Refer to Table 1)
Before storing After storing Full of the memory
(Table 1)
4. RM: Extract the stored data from SM. For example, if you have already stored the measuring data 5M as M1, 10M as M2. But now the measuring data is 120.7M, you could press the bottom RM once then the digital display panel will shows the the data of M1. The top right of the display panel shows [R". The data of the digital display panel will return to the present data after two seconds. ( Refer to Table 2). If you press the RM twice, the data of the M2 will show on the display panel, the [R" also is on the top right. The data of the digital display panel will return to the present data again after two seconds.
Present data Press the RM Once After 2 seconds
(Table 2)
Present data Press the RM twice After 2 seconds
(Table 3)
5. CLR: Clearance. Once you press this button, the present data will be deleted.
4.Precautions for use
Please open the handle lock to adjust the suitable height of this instrument at first and then close it before using the instrument. Put away the kickstand and turn on the power. Put the wheel on the road to be measured when the data is 0.0m on the digital display panel. Please press the bottom CLR if you want to delete the present data.
1. Please go straight if you want to measure a straight line to ensure the accuracy of the measurement.
2. Do not measure uneven surfaces because it will reduce the accuracy.
3. Do not measure in the rain for a long time.
4. Do not use the instrument under the high temperature environment or keep this product in the high temperature place.
5. Please open the battery cover by using the cross-head screwdriver and change the battery when the digital display panel is dark.
6. Do not deal with the used batteries by yourself, please send them to the government designated place where to recycle them.
7. Please remove the battery and clean the instrument by use the mild detergent to prevent rust if you haven`t used it for a long time. Then please pack it well and save it in the rough place.
8. Do not use benzene solution to clean the instrument, otherwise its surface will be corroded.
9. Do not use this the instrument as a toy for child for avoiding unnecessary damage.
Measuring Wheel,Measuring Wheel Walking,Wheel Measuring Tool Wintape Measuring Tape Company , https://www.wintapetapemeasure.com
Model NO.:CuNi44
Product Type:Strip
Material:CuNi Alloy Strip
Carbon Content:None
PCD:100mm
ET:No
Hole:No
Package:Coil Cartons, Pallet, Spools, Coils
Specification:0.01-3mm*0.3-600mm
Trademark:UALLOY
Origin:China
Serves:Small Oreder Accepted
Sample Free:Available
HS Code:7409400000
Production Capacity:200 Tons/Year
Â
Nickel
44
Manganese
1
Copper
Bal.
Â
Â
Yield strength
Tensile Strength
Elongation
Mpa
Mpa
%
250
420
25
Density (g/cm3)
8.9
Electrical resistivity at 20ºC (Ωmm2/m)
0.49
Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC
-6
Conductivity coefficient at 20ºC (WmK)
23
EMF vs Cu(μV/ºC )(0~100ºC )
-43
Coefficient of thermal expansion
Temperature
Thermal Expansion x10-6/K
20 ºC- 400ºC
15
Specific heat capacity
Temperature
20ºC
J/gK
0.41
Melting point (ºC)
1280
Max continuous operating temperature in air (ºC)
400
Magnetic properties
non-magnetic
Alloys
Working In atmosphere at 20ºC
Working at max temperature 200ºC
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Air and oxygen contain gases
gases with Nitrogen
gases with sulfur oxidability
gases with sulfur reductibility
carburization
CuNi44
good
good
good
good
bad
Alloys Name
Type
Dimension
Â
CuNi44WÂ Wire
Wire
D=0.03mm~8mm
Â
CuNi44RÂ Ribbon
Ribbon
W=0.4~40
T=0.03~2.9mm
CuNi44SÂ Strip
Strip
W=8~200mm
T=0.1~3.0
CuNi44FÂ Foil
Foil
W=6~120mm
T=0.003~0.1
CuNi44BÂ Bar
Bar
Dia=8~100mm
L=50~1000