Ohmalloy Material Co.,Ltd
| Payment Terms | T/T, L/C, D/A, D/P, , MoneyGram |
| Supply Ability | 80000 kg/week |
| Delivery Time | 7 workdays |
| Packaging Details | spool+plywood |
| Resistivity(μΩ.cm) | 49 |
| TCR(ppm/K) | -80 to+40 |
| Density (g/cm3) | 8.9 |
| Tensile Strength | 420MPa |
| Shape | wire/ribbon/strip/foil/bar |
| Melting point (℃) | 1280 |
| Brand Name | Ohmalloy |
| Model Number | Ohmalloy 049/CuNi44/6J40 |
| Certification | ISO CE RHOS UL SGS |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C, D/A, D/P, , MoneyGram | Supply Ability | 80000 kg/week |
| Delivery Time | 7 workdays | Packaging Details | spool+plywood |
| Resistivity(μΩ.cm) | 49 | TCR(ppm/K) | -80 to+40 |
| Density (g/cm3) | 8.9 | Tensile Strength | 420MPa |
| Shape | wire/ribbon/strip/foil/bar | Melting point (℃) | 1280 |
| Brand Name | Ohmalloy | Model Number | Ohmalloy 049/CuNi44/6J40 |
| Certification | ISO CE RHOS UL SGS | Place of Origin | China |
| High Light | Wire Wound Resistor Copper Based Alloys ，6J40 Constantan Wire ，Carbon Film Resistor Constantan Wire | ||
6J40 constantan wire for resistor carbon film resistor wire-wound resistor
Constantan( Ohmalloy 049)
(Common Name: CuNi45, NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.)
OhmAlloy049 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.
OhmAlloy049 is manufactured from electrolytic copper and pure nickel. In finer wire sizes the alloy is designated as OhmAlloy49TC(Thermocouple).
| Nickel | 45 | 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 | ||
| OhmAlloy049 | good | good | good | good | bad | good |
Style of supply
| Alloys Name | Type | Dimension | |
| OhmAlloy049W | Wire | D=0.03mm~8mm | |
| OhmAlloy049R | Ribbon | W=0.4~40 | T=0.03~2.9mm |
| OhmAlloy049S | Strip | W=8~200mm | T=0.1~3.0 |
| OhmAlloy049F | Foil | W=6~120mm | T=0.003~0.1 |
| OhmAlloy049B | Bar | Dia=8~100mm | L=50~1000 |
The thermocouple alloy wires with different varieties and specifications of our company can be applied in all kinds of thermocouples, the temperature ranges from -270℃ to 1800℃. The thermocouple alloy wires have excellent performance and are extensively used in the temperature measurement and control in different fields, such as metallurgy, chemical industry, petroleum industry, machinery-electric industry, energy industry, agriculture and military industry. Our products conform to the standards of IEC584 -1and IEC-2 and ANSI96-1.
Characteristics:
● Excellent thermoelectricity, excellent linear relationship between thermoelectrical potential and the temperature.
● Excellent thermoelectrical stability, high accuracy.
Main technical data:
Thermocouple variety, index and temperature measurement range.
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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