KANGTONG (Constantan alloy wire)

Nickel chromium and nickel chromium iron alloy is the most widely used high resistance alloys for electrical heating, the alloy has higher resistivity, good oxidation resistance and wear resistance, good mechanical properties and welding performance, under high temperature and high strength. The alloy is suitable for metallurgy, chemical industry, machinery, glass, ceramics and household electrical appliances and other industrial sectors, such as the production of heating elements, various types of motor voltage regulator and brake resistor.

Category:

Precision Resistance Wire

Key word:

Thermocouple Wire

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Product Details

Chemical composition(Standard: GB/T1234-1995)

Name	Code	Main Composition%				Standard
Name	Code	Cu	Mn	Ni	Cr	Standard
Constantan	6J40	Bal.	1~2	39~41	-	GB/T6145-2010

Properties

Name	Code	Resistivity（μΩ.m）	Temp.Coeffi. Of Resistance(℃)	(0~100℃) Thermal EMF vs. Copper	Max.working Temp.(℃)	Elongation(%)	Tensile Strength (N/mm2)	Standard
Constantan	6J40	0.48±0.03	≤±40	45	≤500	≥15	≥390	GB/T6145-2010

Diameter and Tolerance

Diameter(mm)	0.02~0.028	0.032~0.0	0.112~0.28	0.135~0.50	0.56~1.0	1.06~1.60	1.70~2.12	2.24~3.00	3.15~4.50	Standard
Tolerance(mm)	±0.002	±0.003	±0.005	±0.010	±0.015	±0.020	±0.025	±0.030	±0.035	GB/T6145-2010