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Constantan, New Constantan and Manganin Resistance Alloys

　　 Constantan, New Constantan and Manganin are resistance alloys with copper as the basic elements. They have low resistance temperature quotieties, wide range of work temperatures, good mechanical processing performances and corrosion prevention. Being easy in braze welding, they are applicable to manufacturing various resistors, splitters, alternating-current meters as precise resistance components of rheostat resistance and strain resistance.

Main Technical Performances

		Constantan 6J40	New Constantan 6J11	Manganin 6J12	F1 Manganin 6J8	F2 Manganin 6J13
Main Chemical Elements %	Mn	1--2	10.5--12.5	11--13	8--10	11--13
	Ni	39--41	-	2--3	-	2--5
	Cu	ALW	ALW	ALW	ALW	ALW
			Al：2.5--4.5 Fe：1.0--1.6		Si：1--2
Temperature Range for Components ℃		5--500	5--500	5--45	10--80	10--80
Density g/cm3		8.88	8.00	8.44	8.70	8.40
Resistivity μΩ.m,20℃		0.48 ±0.03	0.49 ±0.03	0.47 ±0.03	0.35 ±0.05	0.44 ±0.04
Extensibility %（＞Φ0.5）		≥15	≥15	≥15	≥15	≥15
Resistance Temperature Quotiety α，10 -6 /℃		-40～+40	-80～+80	-3～+20	-5～+10	0～+40
Thermoelectromotive force to Copper μv/℃(0~100℃)		45	2	1	2	2