High Quality Customized Nickel Chromium Alloy Factory Direct Supply Bar Cr20ni30

Name

NiCr Alloy Bar

Grade

Cr20Ni80 Cr15Ni60 Cr20Ni30 Cr25Ni20 Cr30Ni70

Size

Strip

0.5*5.0mm-5.0*250mm

Bar

10-100mm

Wire

0.018mm-10mm

Chemical Content %

80.00 Nickel, 20.00 Chrome

Max continuous service temperature

1200ºC

Resisivity

1.09 mm2Ω /m

Density

8.4g/cm3

Thermal conductivity

60.3kj/mhc

Coefficient of thermal expansion

18*10-6/c

Melting point

1400ºC

Elongation

Min 20%

Alloy Nomenclature Performance

Cr20Ni80

Cr30Ni70

Cr15Ni60

Cr20Ni25

Cr20Ni30

Main Chemical composition

Ni

Rest

Rest

55.0-61.0

34.0-37.0

30.0-34.0

Cr

20.0-23.0

28.0-31.0

15.0-18.0

18.0-21.0

18.0-21.0

Fe

≤1.0

≤1.0

Rest

Rest

Rest

Max. continuous service temp. of element(ºC)

1200

1250

1150

1100

1100

Resistivity at 20ºC (μΩ·m)

1.09

1.18

1.12

1.0

1.04

Density(g/cm3)

8.40

8.10

8.20

7.90

7.90

Thermal conductivity (KJ/m·h·ºC)

60.3

45.2

45.2

43.8

43.8

Coefficient of lines expansion(α×10-6/ºC)

18.0

17.0

17

19

19

Melting point approx.( ºC)

1400

1380

1390

1390

1390

Elongation at rupture(%)

>20

>20

>20

>20

>20

Micrographic structure

austenite

austenite

austenite

austenite

austenite

Magnetic properties

nonmagnetic

nonmagnetic

Weak magnetic

Weak magnetic

Weak magnetic