Jiangsu, China
Business Type:
Manufacturer/Factory & Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
OEM/ODM Service
Sample Available

Resistance Wire, Heat Resistant Electrical Wire, CuNi 44 manufacturer / supplier in China, offering Constantan Wire Copper Nickel Resistance Wire 6j4/Cn49W, Electric Floor Heating System of VDE Approved, K Type Thermocouple Wire and so on.

Gold Member Since 2011
Audited Supplier
Supplier Homepage Products alloy wire Constantan Wire Copper Nickel Resistance Wire 6j4/Cn49W

Constantan Wire Copper Nickel Resistance Wire 6j4/Cn49W

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $10/ Piece
Port: Shanghai, China
Production Capacity: 100 Tons / Month
Payment Terms: T/T
Product Type: Wire
Material: Cu, Ni
Carbon Content: Low Carbon
Color: Bright
Diameter: 0.03 to 2mm
Component: Ni 44%, Cu Balance

You Might Also Like


Basic Info

Model NO.: 6J4/CN49W
Trademark: Chengxin
Transport Package: Carton, Wooden Case
Specification: Rohs
Origin: Jiangyin
HS Code: 74082900

Product Description

Constantan Wire Copper Nickel Resistance Wire Cn49W

Constantan Wire Copper Nickel Resistance Wire 6j4/Cn49W
Constantan wire
1. Anti-corrosion
2. Cu, ni wire
3. Main materail of heating cable
NameThe main parts (%)Resistance Temperature Coefficient 10 -6 / ° C (20-100° C)Resistance
μ Ω M
(20° C)
Tensile Strength
N/MM 2
G/CM 3
The melting point
° C
° C

40Ni, bal, Cu-40|+40-0.49≥ 6-15390|8758.901200

Constantan is an alloy of nickel (about 40%), copper (about 60%) and manganese (2%).
Constantan has a silver and yellow color. Melting Point - 1260ºC, density - 8.9 g/cm3, thermal expansion coefficient is 14h10 -61/ºC, it has a constant electrical resistance, high thermoelectric power.
This material is very ductile due to nickel in its composition, it lends itself well to machining, soldering and welding, stamping, corrosion resistant, and resistant to high temperature, in cold state is not influenced by low concentrated acid environments, resistant to ammonia vapors, except steam heated to 200-500ºC.
Constantan exists in three types of rolled products: in form of wire, strip and circle.
Constantan wire is manufactured according to GOST1790-77, which covers wire used for thermocouples production and GOST5307-77, which regulates manufacturing of cold-drawn wire of circular cross section used for electrical purposes.
Constantan wire is available in diameter from 0.1 mm to 10.0 mm in hard and soft state.
Constantan strip is made according to GOST5189-75, which defines conditions for manufacturing cold-rolled constantan strips for industrial applications as a material of high electrical resistance.
The thickness of constantan strip ranges from 0.1 mm to 5.0 mm, width - 10.0 mm to 300.0 mm.
Strip may be of soft and hard state. By accuracy of manufacturing: normal accuracy in thickness, normal accuracy in width; normal accuracy in thickness and increased accuracy in width; increased accuracy in thickness and normal accuracy in width; increased accuracy in thickness and increased accuracy in width.
By length: random.
Chemical structure, in %, GOST492-2006 
constantan wire
Electrical Resistance WireCuNi44
NameChemical Composition(%)
Ni (Nickel)44
MAX.Continusus serice Temperature°C400°C
Resistivity 20°C(mm²)0.48(±0.03)
Elongation at Rupture25-30%
Tensile strength Mpa>390
Melting Point 1280
Density g/cm38.9
TCRx10-6 /°C+40
ASTERMET LLC delivers constantan and other thermocouple wire from stock and by order. Besides wire, it is also possible to deliver constantan strip, plate and circle. The quality of services provided, professional managers, short delivery and reasonable prices are distinguishing us from other companies.
We also offer:

Send your message to this supplier

avatar Ms. Lucie Liu

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now