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          2. 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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