name

brand

Main chemical composition,%

Executive

standard

Cu

Mn

Ni

Si

Cr

Fe

manganin

6J12

remain

11-13

2-3

-

-

-

GB/T6145-1999

F1 manganin

6J8

remain

8-10

-

1-2

-

-

F2 manganin

6J13

remain

11-13

2-5

-

-

-

constantan alloy

6J40

remain

1-2

39-41

-

-

-

Brand

• electrical specifications

Diameter

mm

Mechanical properties

Executive

standard

20°CresistivityuΩ·m

Applied temperature°C

Test Temperature°C

temperature coefficient

Tensile

strength

N/mm²

Elongation

%

a×10⁶/°C

β×10⁶/°C²

6J12

1level

0.47±0.03

5~45

10

20

40

-3~+5

-

0.70~0

≤0.05

-

≥6

GB/T6145

-1999

2level

-5~+10

>0.050~0.10

≥8

3level

-10~+20

6J8

0.35±0.05

10~80

10

40

60

-5~+10

-

0.25~0

>0.01~0.500

≥12

6J13

0.44±0.04

10~80

0~+40

0.7~0

>0.500

≥15

6J40

0.48±0.03

0~50

20,50

-40~+40

-

≥390