Nichrome alloy wire for vacuum metalizing application nickle chrome filament

Property

Cr15Ni60

Cr20Ni80

Cr20Ni30

 Main Chemical Composition(%)

15-18

20-23

18-21

55-61

Rest

30-34

Rest

--

Rest

Max continuous service Temp.of elements

1100

1150

1100

Density(g/cm3)

8.2

8.4

7.9

Melting point(approx )

1390

1400

1390

Elongating(%)

20

20

30

Resistivity at 20

1.12-1.15±0.05

1.09-1.14±0.05

1.04-1.06±0.05

Micrographic structure

 Austenite A

Austenite A

Austenite A

Alloy

Ni%

Mn%

Fe%

Si%

Cr%

C%

NiCr 80:20

Bal.

Max 1.0

Max 1.0

1.00 - 1.50

19 - 21

Max 0.10

NiCr 70:30

Bal.

Max 1.0

Max 1.0

1.00 - 1.50

28 - 32

Max 0.10

NiCr 60:15

Min 57.0

Max 1.0

Bal.

1.00 - 1.50

14 - 17

Max 0.10

NiCr 40:20

Min 37.0

Max 1.0

Bal.

1.80 - 3.00

18 - 22

Max 0.10

NiCr 30:20

Min 28.0

Max 1.0

Bal.

1.80 - 3.00

18 - 22

Max 0.10

NiCr 20:25

Min 18.0

Max 1.0

Bal.

1.00 - 1.50

23 - 27

Max 0.10

Alloy

NiCr 80:20

NiCr 70:30

NiCr 60:15

NiCr 40:20

NiCr 30:20

NiCr 20:25

Tensile strength
Min-Max (N/mm 2 )

700-900

800-950

700-850

700-850

650-800

600-800

Elongation %
(L 0 =100 mm)

25-35

25-30

25-35

25-35

25-35

25-35