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    4. Welcome to: Danyang Hualong Special Steel Co., Ltd. official website
      Location: Home > Products
      Products
      Iron-chromium aluminum alloy

      (1). Performance characteristics
      High chromium iron chromium electrothermal alloy with high resistivity, low temperature coefficient of resistance, the use of high temperature characteristics. Good corrosion resistance at high temperatures, especially suitable for use in atmospheres containing sulfur and sulphides, and at low cost, are ideal heating materials for industrial furnaces, appliances, and far-infrared devices.
      (2). Product Specifications:

      Cold-drawn alloy wire

      Diameter

      φ1.0-φ10.0mm

      Hot rolled alloy disk

      Diameter

      φ8.0-φ12.0mm

      Cold-rolled alloy strip

      Thickness

      0.5-3.5mm

      Cold-rolled alloy strip

      Width

      5.0-45.0mm

      Hot rolled alloy strip

      Thickness

      3.0-6.0mm

      Hot rolled alloy strip

      Width

      12.0-45.0mm

      Bright filament around the shaft

      Diameter

      φ0.1-φ1.0mm

      Shaft round bright flat wire

      Thickness

      0.08-1.50mm

      Shaft round bright flat wire

      Width

      0.5-5.0mm

      (3) Delivery Status:
      1, the supply status
      Wires and plates are supplied in white or oxidized colors.
      Strip except for special requirements, the general oxidation of the color after the supply.
      Filament and flat wire after the protective gas annealing, the supply of bright soft state.
      2, product packaging
      Wire and tape wrapped in cloth, roll supply.
      Filament and flat yarn, plastic supply around the shaft.
      3, export products and users have special requirements, negotiated settlement.


      Grade

      1Cr13AL4

      1Cr21AL4

      0Cr21AL6

      0Cr23AL5

      0Cr25AL5

      0Cr21AL6Nb

      0Cr27AL7Mo2

      Performance








      The main chemical composition%

      Cr

      12.0-15.0

      17.0-21.0

      19.0-22.0

      20.0-23.5

      23.0-26.0

      21.0~23.0

      26.5~27.8

      AI

      4.0~6.0

      2.0~4.0

      5.0~7.0

      4.2~5.3

      4.5~6.5

      5.0~7.0

      6.0~7.0

      Fe

      Margin

      Margin

      Margin

      Margin

      Margin

      Margin

      Margin

      Re

      Appropriate amount

      Appropriate amount

      Appropriate amount

      Appropriate amount

      Appropriate amount

      Appropriate amount

      Appropriate amount







      Add amountNb:0.5

      Add amountMo:1.8—2.2.

      Components maximum operating temperature℃

      950

      1100

      1250

      1250

      1250

      1350

      1400

      Melting point℃

      1450

      1500

      1500

      1500

      1500

      1510

      1520

      Densityg/cm3

      7.40

      7.35

      7.16

      7.25

      7.10

      7.10

      7.10

      ResistivityμΩ·m,20℃

      1.25±0.08

      1.23±0.06

      1.42±0.07

      1.35±0.06

      1.42±0.07

      1.45±0.07

      1.53±0.07

      Tensile strength Mpa

      588~735

      637~784

      637~784

      637~784

      637~784

      637~784

      686~784

      Elongation%

      ≥16

      ≥12

      ≥12

      ≥12

      ≥12

      ≥12

      ≥10

      Repeated bending times

      ≥5

      ≥5

      ≥5

      ≥5

      ≥5

      ≥5

      ≥5

      Fast lifeh/℃

      ——

      ≥80/1250

      ≥80/1300

      ≥80/1300

      ≥80/1300

      ≥80/1350

      ≥80/1350

      Specific heatJ/g.℃

      0.490

      0.490

      0.520

      0.460

      0.494

      0.494

      0.494

      Thermal ConductivityKJ/m.h℃

      52.7

      46.9

      63.2

      60.2

      46.1

      46.1

      45.2

      Linear expansion coefficient
      a×10-6/℃
      (20~1000℃

      15.4

      13.5

      14.7

      15.0

      16.0

      16.0

      16.0

      HardnessHB

      200~260

      200~260

      200~260

      200~260

      200~260

      200~260

      200~260

      Microstructure

      Ferrite

      Ferrite

      Ferrite

      Ferrite

      Ferrite

      Ferrite

      Ferrite

      Magnetic

      Magnetic

      Magnetic

      Magnetic

      Magnetic

      Magnetic

      Magnetic

      Magnetic

      4. Iron chromium aluminum wire parameters


      Wire diameter
      (mm)

      Cross-sectional area
      (mm2)

      Per meter
      Surface area
      cm2/m

      0Cr25AL5

      0Cr23AL5

      0Cr21ALl6Nb

      0C27AL7Mo2

      Weight per meter
      g/m

      Resistance per meter
      Ω/m,20℃

      Weight per meterg/m

      Resistance per meter
      Ω/m,20℃

      Weight per meterg/m

      Resistance per meter
      Ω/m,20℃

      Weight per meterg/m


      Resistance per meterΩ/m,20℃

      0.10

      0.007854

      3.142

      0.05576

      180.8

      0.0573

      172

      0.0561

      184.6

      0.0561


      0.12

      0.01131

      3.770

      0.08030

      125.6

      0.0819

      119

      0.0802

      128.2

      0.0802


      0.15

      0.01767

      4.712

      0.1255

      80.36

      0.128

      76.4

      0.125

      82.05

      0.125


      0.17

      0.02270

      5.341

      0.1612

      62.56

      0.165

      59.5

      0.161

      63.88

      0.161


      0.19

      0.02835

      5.969

      0.2013

      50.08

      0.206

      47.6

      0.201

      51.14

      0.201


      0.21

      0.03464

      6.597

      0.2459

      41.00

      0.251

      39.0

      0.246

      41.86

      0.246


      0.25

      0.04909

      7.854

      0.3485

      28.93

      0.356

      27.5

      0.349

      29.54

      0.349


      0.27

      0.05726

      8.482

      0.4065

      24.80

      0.418

      24.3

      0.403

      25.33

      0.403


      0.29

      0.06605

      9.111

      0.4690

      21.50

      0.481

      20.1

      0.469

      21.95

      0.469


      0.31

      0.07548

      9.739

      0.5359

      18.81

      0.583

      17.5

      0.573

      19.21

      0.573


      0.35

      0.09621

      11.00

      0.6830

      14.76

      0.689

      14.0

      0.683

      15.07

      0.683


      0.40

      0.1257

      12.57

      0.8922

      11.30

      0.911

      10.7

      0.892

      11.54

      0.892


      0.45

      0.1590

      14.14

      1.129

      8.928

      1.153

      8.49

      1.129

      9.117

      1.129


      0.50

      0.1963

      15.71

      1.394

      7.232

      1.42

      6.88

      1.39

      7.385

      1.39


      0.60

      0.2827

      18.85

      2.007

      5.022

      2.05

      4.77

      2.01

      5.128

      2.01


      0.70

      0.3848

      21.99

      2.732

      3.690

      2.79

      3.51

      2.73

      3.768

      2.73


      0.80

      0.5027

      25.13

      3.569

      2.825

      3.64

      2.69

      3.57

      2.885

      3.57


      0.90

      0.6362

      28.28

      4.517

      2.232

      4.61

      2.12

      4.52

      2.279

      4.52


      1.00

      0.7854

      31.42

      5.576

      1.808

      5.70

      1.72

      5.58

      1.846

      5.58


      1.20

      1.131

      37.70

      8.030

      1.256

      8.2

      1.19

      8.03

      1.282

      8.03


      1.40

      1.539

      43.98

      10.93

      0.9224

      11.16

      0.877

      10.9

      0.9419

      10.9


      1.60

      2.011

      50.27

      14.28

      0.7063

      14.6

      0.671

      14.3

      0.7212

      14.3


      1.80

      2.545

      56.55

      18.07

      0.5580

      18.4

      0.531

      18.1

      0.5698

      18.1


      2.00

      3.142

      62.83

      22.31

      0.4520

      22.8

      0.43

      22.3

      0.4615

      22.3


      2.20

      3.801

      69.12

      26.99

      0.3736

      27.6

      0.355

      27.0

      0.3814

      27.0


      2.50

      4.909

      78.54

      34.85

      0.2893

      35.6

      0.275

      34.9

      0.2954

      34.9


      2.80

      6.158

      87.96

      43.72

      0.2306

      44.6

      0.219

      43.7

      0.2355

      43.7


      3.00

      7.069

      94.25

      50.19

      0.2009

      51.2

      0.191

      50.2

      0.2051

      50.2


      3.50

      9.621

      110.0

      68.31

      0.1476

      69.8

      0.140

      68.3

      0.1507

      68.3


      4.00

      12.57

      125.7

      89.22

      0.1130

      91.1

      0.107

      89.3

      0.1154

      89.3


      4.50

      15.90

      141.1

      112.9

      0.08928

      115.3

      0.0849

      112.9

      0.09117

      112.9


      5.00

      19.63

      157.1

      139.4

      0.07232

      142

      0.0688

      139

      0.07385

      139


      5.50

      23.76

      172.8

      168.7

      0.05977

      172

      0.0568

      169

      0.06103

      169


      6.00

      28.27

      188.5

      200.7

      0.05022

      205

      0.0477

      201

      0.05128

      201


      6.50

      33.18

      204.2

      235.6

      0.04279

      241

      0.0407

      236

      0.04370

      236


      7.00

      38.48

      219.9

      273.2

      0.03690

      279

      0.0351

      273

      0.03768

      273


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