China Categories
CuNi40 Constantan Copper Based Alloys 25% Elongation High Resistance Wire
Ask Latest Price
Brand Name:OHMALLOY
Model Number:CN44W0193B
Certification:SGS,CE,ISO
Price:negotiable
Payment Terms:, T/T, L/C
Supply Ability:80000Kg/Week
Company Data
Verified Supplier
Contact Person
Qiu
Business Type:
Manufacturer Distributor/Wholesaler Exporter Trading Company
Officials:
Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Quality:
Quality Certifitation Available
Visit Website
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 | |
Company Profile
Ohmalloy Material Co.,Ltd
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 cleaning, rolling and slitting, full set of testing machine and can meet all kinds of technical requirement from customer. Our product is widely used in heating equipment, big steel mill, mineral, electrical equipment, food machinery, auto industry, aerospace industry. Our product not only is popular in domestic market, but also been exported to all over the world.
Our company aims to be the best-quality alloy producer in the
world. We insist on developing the more advanced alloy strip
technology, to serve all the customer, improve people’s living
level, make a more green earth in the future
Send your message to this supplier
You May Like
GMAW / Amp Copper Based Alloys Copper Alloy Wire / Rod Excellent Welding
CuNi44 Copper Based Alloys Resistor 400℃ Temperature Heat Resistant Wire
Precision Resistance Constantan Wire For Relay , Copper Nickel Wire
36 × 0.193 mm 420Mpa Copper Based Alloys CuNi10 Wire For Heating Mat
Low Resistance Copper Based Alloys CuNi30 Wire 38 0.152mm For Heating Cable
High Corrosion Resisting Alloy 400 UNS No 4400 Sheet Monel 400 Strip
CuNi2 / CuNi6 / CuNi10 Copper Based Alloys 25% Elongation High Resistance Wire
Nickel Plated Beryllium Copper Alloys High Strength C1720 / C17200 Corrosion Resistant
CuNi Copper Based Alloys Wire Low Heat Resistant For Low Voltage Circuit Breaker
CuNi2 / Alloy30 For Electric Blankets And Pillows / Heat Resistant Copper Alloy Wire
High Electrical Resistance Constantan Rod CuNi45 Copel Alloy 45
Inquiry Cart
0