Changshu Electric Heating Alloy Material Factory Co., Ltd.
    Add: 258, Hualian East Rd, Meili Town, Changshu City,
    Jiangsu Province, China Tel: +86(0)512-52660018 52669829
    Fax: +86(0)512-52663085
    Web: http://www.cseha.com
    E-mail:master@resistance-wire.com.cn
       annie.wang@resistance-wire.com.cn
     
     
            Code:0Cr25AL5、0Cr21AL6Nb、0Cr27AL7Mo2、Cr20Ni80
            MaterialSpring wire
            Specifications:300W-4000W
            features: I produced the Fe-Cr-Al heating wire has: the high temperature (0Cr27Al7Mo2 and HRE in the atmosphere, the maximum temperature up to 1400 ℃), long life, allowing the surface load, good oxidation resistance, the proportion of small In nickel-chromium alloy, high resistivity, and good resistance to sulfur features, are widely used in electric furnace, furnace heating elements and other products produced and resistance components
       

    Open-type spring wire:

    Power
    W

    Dia.mm

    Mandreldiameter(mm)

    Cold resistance 
    (Ω)

    Weight

    (g)

    Cable length

    mm

    Spirallength

    (mm)

    300

    0.30

    3.0

    153.7

    3.84

    7654

    198

    400

    0.35

    3.0

    115.2

    5.33

    7854

    232

    500

    0.40

    3.5

    92.2

    7.28

    8159

    242

    600

    0.45

    3.5

    76.8

    9.70

    8600

    283

    800

    0.55

    4.0

    57.6

    16.23

    9632

    360

    1000

    0.60

    4.0

    46.1

    18.42

    9178

    370

    1200

    0.70

    4.0

    38.4

    28.44

    10410

    455

    1500

    0.80

    4.0

    30.7

    38.87

    10890

    663

    2000

    0.90

    4.0

    23

    46.57

    10310

    547

    2500

    1.10

    4.5

    18.4

    83.32

    12350

    755

    3000

    1.20

    4.5

    15.4

    98.12

    12220

    770

    4000

    1.50

    5.0

    11.5

    179.33

    14300

    962


    Technical parameters of spring wire Table:

    Performance\ material

    0Cr25A15

    0Cr21A16Nb

    0Cr27A17Mo2

    composition

    Cr

    23.0-26.0

    21.023.0

    26.527.8

    AL

    4.56.5

    5.07.0

    6.07.0

    Fe

    Rest

    Rest

    Rest

    Re

    Rest

    Rest

    Rest

     

     

    Nb:0.5

    Nb:0.5

    Max.continuous service

    Temp. of element

    1250

    1350

    1400

    Melting Point

    1500

    1510

    1520

    密度g/cm3

    7.10

    7.10

    7.10

    Resistivity
    μΩ·m20

    1.42±0.07

    1.45±0.07

    1.53±0.07

    Tensile strength
    Mpa

    630780

    650800

    680830

    Elongation at rupture

    12

    12

    10

    Repeat Bending Frequency

    5

    5

    5

    Fast life h/

    80/1300

    80/1350

    80/1350

    Specific heat J/g.

    0.494

    0.494

    0.494

    Thermal conductivity
    KJ/m.h

    46.1

    46.1

    45.2

    Coefficient of lines expansion
    a
    ×10-6/
    20
    1000

    16.0

    16.0

    16.0

    Hardness HB

    200260

    200260

    200260

    Micrographic struction

    Ferrite

    Ferrite

    Ferrite

    Magnetic properties

    Magnetic

    Magnetic

    Magnetic

    Technical parameters of spring wire Table:

    Dia.

    Cross Sectional area
    (mm
    2)

    Surface per meter
    cm
    2/m

    0Cr25A15

    0Cr21A16Nb

    0Cr27A17Mo2

    Weight per meter
    kg/m

    Resistance per meter
    Ω/m,20

    Weight per meter
    kg/m

    Resistance per meter

    Weight per meter
    Ω/m,20

    Resistance per meter
    Ω/m,20

    0.10

    0.007854

    3.142

    0.00005576

    180.8

    0.00005576

    184.6

    0.00005576

    194.8

    0.12

    0.01131

    3.770

    0.00008030

    125.6

    0.00008030

    128.2

    0.00008030

    135.3

    0.15

    0.01767

    4.712

    0.0001255

    80.36

    0.0001255

    82.05

    0.0001255

    80.6

    0.17

    0.02270

    5.341

    0.0001612

    62.56

    0.0001612

    63.88

    0.0001612

    67.4

    0.19

    0.02835

    5.969

    0.0002013

    50.08

    0.0002013

    51.14

    0.0002013

    54.0

    0.21

    0.03464

    6.597

    0.0002459

    41.00

    0.0002459

    41.86

    0.0002459

    44.2

    0.25

    0.04909

    7.854

    0.0003485

    28.93

    0.0003485

    29.54

    0.0003485

    31.2

    0.27

    0.05726

    8.482

    0.0004065

    24.80

    0.0004065

    25.33

    0.0004065

    26.7

    0.29

    0.06605

    9.111

    0.0004690

    21.50

    0.0004690

    21.95

    0.0004690

    23.2

    0.31

    0.07548

    9.739

    0.0005359

    18.81

    0.0005359

    19.21

    0.0005359

    20.3

    0.35

    0.09621

    11.00

    0.0006830

    14.76

    0.0006830

    15.07

    0.0006830

    15.9

    0.40

    0.1257

    12.57

    0.0008922

    11.30

    0.0008922

    11.54

    0.0008922

    12.19

    0.45

    0.1590

    14.14

    0.001129

    8.928

    0.001129

    9.117

    0.001129

    9.62

    0.50

    0.1963

    15.71

    0.001394

    7.232

    0.001394

    7.385

    0.001394

    7.79

    0.60

    0.2827

    18.85

    0.002007

    5.022

    0.002007

    5.128

    0.002007

    5.41

    0.70

    0.3848

    21.99

    0.002732

    3.690

    0.002732

    3.768

    0.002732

    3.98

    0.80

    0.5027

    25.13

    0.003569

    2.825

    0.003569

    2.885

    0.003569

    3.04

    0.90

    0.6362

    28.28

    0.004517

    2.232

    0.004517

    2.279

    0.004517

    2.41

    1.00

    0.7854

    31.42

    0.005576

    1.808

    0.005576

    1.846

    0.005576

    1.95

    1.20

    1.131

    37.70

    0.008030

    1.256

    0.008030

    1.282

    0.008030

    1.35

    1.40

    1.539

    43.98

    0.01093

    0.9224

    0.01093

    0.9419

    0.01093

    0.994

    1.60

    2.011

    50.27

    0.01428

    0.7063

    0.01428

    0.7212

    0.01428

    0.761

    1.80

    2.545

    56.55

    0.01807

    0.5580

    0.01807

    0.5698

    0.01807

    0.601

    2.00

    3.142

    62.83

    0.02231

    0.4520

    0.02231

    0.4615

    0.02231

    0.487

    2.20

    3.801

    69.12

    0.02699

    0.3736

    0.02699

    0.3814

    0.02699

    0.402

    2.50

    4.909

    78.54

    0.03485

    0.2893

    0.03485

    0.2954

    0.03485

    0.312

    3.00

    7.069

    94.25

    0.05019

    0.2009

    0.05019

    0.2051

    0.05019

    0.216

    3.50

    9.621

    110.0

    0.06831

    0.1476

    0.06831

    0.1507

    0.06831

    0.159

    4.00

    12.57

    125.7

    0.08922

    0.1130

    0.08922

    0.1154

    0.08922

    0.1218

    4.50

    15.90

    141.1

    0.1129

    0.08928

    0.1129

    0.09117

    0.1129

    0.0962

    5.00

    19.63

    157.1

    0.1394

    0.07232

    0.1394

    0.07385

    0.1394

    0.0779

    5.50

    23.76

    172.8

    0.1687

    0.05977

    0.1687

    0.06103

    0.1687

    0.0644

    6.00

    28.27

    188.5

    0.2007

    0.05022

    0.2007

    0.05128

    0.2007

    0.0541

    6.50

    33.18

    204.2

    0.2356

    0.04279

    0.2356

    0.04370

    0.2356

    0.0461

    7.00

    38.48

    219.9

    0.2732

    0.03690

    0.2732

    0.03768

    0.2732

    0.0398


    Notes:
    1Heating wire in the design of the power wiring methods shall be based on reasonable surface load, the correct selection of wire diameter.
    2Electric wire in response to the furnace before installing a comprehensive inspection, clear ferrite, Results of carbon, in contact with the furnace on the hidden dangers to avoid short circuit, causing furnace to prevent the breakdown of silk.
    3Electric wire in the wiring installation methods should be designed properly connected.
    4In the use of electric wire temperature control system should be checked before the sensitivity to prevent temperature failure, resulting in burning of electric wire.
     
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