سبائك FeCrAl ذات نوعية جيدة

                       Grades                              

1Cr13A14

0Cr25A15

0Cr21A16

0Cr23A15

0Cr21A14

0Cr21A16Nb

0Cr27A17Mo2

                    Properties

Chemical composition %

Cr

12.0-15.0

23.0-26.0

19.0-22.0

22.5-24.5

18.0-21.0

21.0-23.0

26.5-27.8

Al

4.0-6.0

4.5-6.5

5.0-7.0

4.2-5.0

3.0-4.2

5.0-7.0

6.0-7.0

Fe

Balance

Balance

Balance

Balance

Balance

Balance

Balance

 Other

Nb 0.5

Mo1.8-2.2

Highest service temperature ℃ 

950

1250

1250

1250

1100

1350

1400

ResistivityμΩ.m,20℃

1.25

1.42

1.42

1.35

1.23

1.45

1.53

Density (g/cm3 )

7.4

7.10

7.16

7.25

7.35

7.10

7.10

Thermal conductivity KJ/m.h.℃

52.7

46.1

63.2

60.2

46.9

46.1

45.2

Coefficient of linear extensibility 

α×10-6/℃

15.4

16.0

14.7

15.0

13.5

16.0

16.0

Melting point ℃

1450

1500

1500

1500

1500

1510

1520

Tensile Mpa 

580-680

630-780

630-780

630-780

600-700

650-800

680-830

Elongation %

>16

>12

>12

>12

>12

>12

>10

Reduction %

65-75

60-75

65-75

65-75

65-75

65-75

65-75

Hardness H.B.

200-260

200-260

200-260

200-260

200-260

200-260

200-260

Microstructure

Ferrite

Ferrite

Ferrite

Ferrite

Ferrite

Ferrite

Ferrite

Magnetic property

magnetic

magnetic

magnetic

magnetic

magnetic

magnetic

magnetic