FeCrAl alloy

 FeCrAl alloy have superior oxidation resistance as compared to to other commercial Fe and Ni base alloy.

Chemical Composition and Main Property of Fe-Cr- Al- Resistance Alloy.

 

Properties \ Grade

1Cr13A14

0Cr21A14

0Cr21A16

0Cr23A15

0Cr25A15

Main
Chemical
Composition
(%)

Cr

12.0~15.0

18.0~21.0

19.0~22.0

22.5~24.5

23.0~23.0

Al

4.0~6.0

3.0~4.2

5.0~7.0

4.2~6.5

4.5~6.5

Fr

Balance

Balance

Balance

Balance

Balance

Re

Opportune

Opportune

Opportune

Opportune

Opportune

  Max Continuous
         Service
   Temperature (c)

950

1100

1250

1250

1250

Melting Point (c)

1450

1500

150

1500

1500

Resisivity
(µ   Ω/m, 20C)

1.25±0.08

1.23±0.06

1.47±0.07

1.35±0.07

1.42±0.06

Density (g/cm)

7.40

7.35

7.16

7.25

7.10

Thermal
Conductivity
(KJ/m.h.C)

52.7

46.9

63.2

60.2

46.1

Coefficient of thermal Expansion
(α×10/c)                            20 ˙~1000c )

15.4

13.5

14.7

15.0

16.0

Tensile
Strength (Map)

588~735

637~784

637~784

637~784

637~784

Elongation (%)

≥16

≥12

≥12

≥12

≥12

Section Variation
Shrink Rate (%)

65~75

65~75

65~75

65~75

65~75

Hardness  (HB)

200~260

200~260

200~260

200~260

200~260

Micrographic
Structure

Ferrite

Ferrite

Ferrite

Ferrite

Ferrite

Magnetic  Property

Magnetic

Magnetic

Magnetic

Magnetic

Magnetic

 

 

Fe-cr-al Series Ni-cr-al Series
1Cr13AL4,0Cr19AL3
0Cr21AL4,0Cr23AL5
0Cr25AL5,0Cr21AL6Nb
0Cr23AL5Ti
0Cr27AL7Mo2
Cr20Ni80
Cr30Ni70
Cr15Ni60
Cr20Ni35
Cr20Ni30
Product Available Size
Round Wire Flat Wire
SWG 18 to 40 25x2, 25x3,25x4, 32x4, 32x5
Nicrome Heating Wire
Mica shields   Nicrome Heating Wire is widely used in electric heating elements, such as in hair dryers, electric ovens, soldering iron, toasters, and even electronic cigarettes. Typically, Nichrome is wound in coils to a certain electrical resistance, and current is passed through to produce heat.

 

 

NiCr alloy

Nichrome (NiCr alloy) is brand name for a nickel-chromium resistance wire, a non-magnetic  alloy of nickel and chromium. A common alloy is 80% nickel and 20% chromium, by weight, but there are many others to accommodate various applications.

Chemical  Composition and Main Properties of Nichron

 

Properties\Grade

NiCr80/20

NiCr70/30

NIcr60/15

Nicr35/20

NiCr30/20

       Main
   Chemical
Compositin
         %

NI

Balance

Balance

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

Balance

Balance

Balance

Max Continuous
        Service
Temperature(c)

1200

1200

1150

1100

1100

Resisvity
(µ Ω/m,20C)

1.09±0.05

1.18±0.05

1.12±0.05

1.04±0.05

1.074±0.05

Density (g/cm)

8.4

8.1

8.2

7.9

7.9

Thermal
Conductivity
(KJ/m.h. c)

60.3

45.2

45.2

43.8

43.8

Coefficient of Thermal
Expansion ( α ×10/c)

18.0

17.0

17.0

19.0

19.0

Melting Point
(c)

1400

1380

1390

1390

1390

Elongation ( % )

≥20

≥20

≥20

≥20

≥20

Micrographic
Structure

austenite

austenite

austenite

austenite

Austenite

Magnetic
Property

Non-magnetic

Non-magnetic

Non-magnetic

Non-magnetic

Non-magnetic