CuNi40 Constantan Copper Based Alloys 25% Elongation High Resistance Wire
Brand Name:OHMALLOY
Certification:SGS,CE,ISO
Model Number:CN44W0193B
Minimum Order Quantity:5
Payment Terms:, T/T, L/C
Place of Origin:China(Shanghai)
Contact Now
Add to Cart
Verified Supplier
Location:
Shanghai Shanghai China
Address:
Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Supplier`s last login times:
within 1 hours
Product Details
Company Profile
Product Details
CuNi40 Constantan Copper Based Alloys 25% Elongation High
Resistance Wire
OhmAlloy49(Resistance heating wire and resistance wire)
(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.)
OhmAlloy49 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.
OhmAlloy49 is manufactured from electrolytic copper and pure
nickel. In finer wire sizes the alloy is designated as
OhmAlloy49TC(Thermocouple).
Normal composition%
| Nickel | 44 | Manganese | 1 |
| Copper | Bal. |
Typical Mechanical properties(1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 250 | 420 | 25 |
Typical Physical properties
| 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 |
| |
| Temperature | Thermal Expansion x10-6/K |
| 20 ℃- 400℃ | 15 |
| Specific heat capacity | |
| Temperature | 20℃ |
| J/gK | 0.41 |
Corrosion resistance performance
| Alloys | Working In atmosphere at 20℃ | Working at max temperature 200℃ | |||||
Air and oxygen contain | gases with Nitrogen | gases with sulfur | gases with sulfur | carburization | |||
| OhmAlloy49 | good | good | good | good | bad | good | |
constantan wire :CuNi44, CuNi40, CuNi30, CuNi23,CuNI19,CuNi10,
CuNi6, CuNi4, CuNi2, CuNi1
size:10.0mm-0.03mm
ISO9001, ROHs
constantan wire :CuNi44, CuNi40, CuNi30, CuNi23,CuNI19,CuNi10,
CuNi6, CuNi4, CuNi2, CuNi1
size:10.0mm-0.03mm
ISO9001, ROHS ,REACH
PACKING;COIL AND CARTON
DELIVERY TIME: 15-20 DAYS
| main property | type | CuNi1 | CuNi2 | CuNi6 | CuNi8 | CuMN3 | CuNi10 | CuNi14 | CuNi19 | CuNi23 | CuNi30 | CuNi34 | CuNi44 |
| main chemical composition | Ni | 1 | 2 | 6 | 8 | / | 10 | 14.2 | 19 | 23 | 30 | 34 | 44 |
| Mn | / | / | / | / | 3 | / | 0.3 | 0.5 | 0.5 | 1.0 | 1.0 | 1.0 | |
| Cu | rest | rest | rest | rest | rest | rest | rest | rest | rest | rest | rest | rest | |
working temperature °c | 200 | 200 | 220 | 250 | 200 | 250 | 300 | 300 | 300 | 350 | 350 | 400 | |
| temperature coefficient of resistance | <100 | <120 | <60 | <57 | <38 | <50 | <38 | <25 | <16 | <10 | -0 | <-6 | |
| °c | 1085 | 1090 | 1095 | 1097 | 1050 | 1100 | 1115 | 1135 | 1150 | 1170 | 1180 | 1280 | |
| tensile mpa | >210 | >220 | >250 | >270 | >290 | >290 | >310 | >340 | >350 | >400 | >400 | >420 | |
| elongation% | >25 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | |
| resistivity | 0.03±10% | 0.05±10% | 0.10±10% | 0.12±10% | 0.12±10% | 0.15±10% | 0.20 ± 5% | 0.25 ± 5% | 0.30 ± 5% | 0.35± 5% | 0.40 ± 5% | 0.49 ± 5% | |
| density g/cm3 | 8.9 | 8.9 | 8.9 | 8.9 | 8.8 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | |
| conductivity | 145 | 130 | 92 | 75 | 84 | 59 | 48 | 38 | 33 | 27 | 25 | 23 | |
Style of supply
| Alloys Name | Type | Dimension | ||
| OhmAlloy49W | Wire | D=0.03mm~8mm | ||
| OhmAlloy49R | Ribbon | W=0.4~40 | T=0.03~2.9mm | |
| OhmAlloy49S | Strip | W=8~200mm | T=0.1~3.0 | |
| OhmAlloy49F | Foil | W=6~120mm | T=0.003~0.1 | |
| OhmAlloy49B | Bar | Dia=8~100mm | L=50~1000 | |
CuNi40 Constantan Copper Based Alloys 25% Elongation High Resistance Wire
Inquiry Cart
0