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(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:
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Cold-drawn alloy wire
|
Diameter
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φ1.0-φ10.0mm
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Hot rolled alloy disk
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Diameter
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φ8.0-φ12.0mm
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Cold-rolled alloy strip
|
Thickness
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0.5-3.5mm
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|
Cold-rolled alloy strip
|
Width
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5.0-45.0mm
|
|
Hot rolled alloy strip
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Thickness
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3.0-6.0mm
|
|
Hot rolled alloy strip
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Width
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12.0-45.0mm
|
|
Bright filament around the shaft
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Diameter
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φ0.1-φ1.0mm
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Shaft round bright flat wire
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Thickness
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0.08-1.50mm
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Shaft round bright flat wire
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Width
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0.5-5.0mm
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(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.
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Grade
|
1Cr13AL4
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1Cr21AL4
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0Cr21AL6
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0Cr23AL5
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0Cr25AL5
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0Cr21AL6Nb
|
0Cr27AL7Mo2
|
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Performance
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|
|
|
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The main chemical composition%
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Cr
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12.0-15.0
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17.0-21.0
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19.0-22.0
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20.0-23.5
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23.0-26.0
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21.0～23.0
|
26.5～27.8
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|
AI
|
4.0～6.0
|
2.0～4.0
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5.0～7.0
|
4.2～5.3
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4.5～6.5
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5.0～7.0
|
6.0～7.0
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|
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
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Add amountMo:1.8—2.2.
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Components maximum operating temperature℃
|
950
|
1100
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1250
|
1250
|
1250
|
1350
|
1400
|
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Melting point℃
|
1450
|
1500
|
1500
|
1500
|
1500
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1510
|
1520
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Densityg/cm3
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7.40
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7.35
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7.16
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7.25
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7.10
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7.10
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7.10
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ResistivityμΩ·m，20℃
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1.25±0.08
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1.23±0.06
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1.42±0.07
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1.35±0.06
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1.42±0.07
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1.45±0.07
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1.53±0.07
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Tensile strength Mpa
|
588～735
|
637～784
|
637～784
|
637～784
|
637～784
|
637～784
|
686～784
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Elongation%
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≥16
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≥12
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≥12
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≥12
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≥12
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≥12
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≥10
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Repeated bending times
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≥5
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≥5
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≥5
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≥5
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≥5
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≥5
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≥5
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Fast lifeh/℃
|
——
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≥80/1250
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≥80/1300
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≥80/1300
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≥80/1300
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≥80/1350
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≥80/1350
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Specific heatJ/g.℃
|
0.490
|
0.490
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0.520
|
0.460
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0.494
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0.494
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0.494
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Thermal ConductivityKJ/m.h℃
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52.7
|
46.9
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63.2
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60.2
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46.1
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46.1
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45.2
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Linear expansion coefficient
a×10-6/℃
（20～1000℃
|
15.4
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13.5
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14.7
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15.0
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16.0
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16.0
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16.0
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HardnessHB
|
200～260
|
200～260
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200～260
|
200～260
|
200～260
|
200～260
|
200～260
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Microstructure
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Ferrite
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Ferrite
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Ferrite
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Ferrite
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Ferrite
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Ferrite
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Ferrite
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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4. Iron chromium aluminum wire parameters
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Wire diameter
(mm)
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Cross-sectional area
(mm2)
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Per meter
Surface area
cm2/m
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0Cr25AL5
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0Cr23AL5
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0Cr21ALl6Nb
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0C27AL7Mo2
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Weight per meter
g/m
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Resistance per meter
Ω/m,20℃
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Weight per meterg/m
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Resistance per meter
Ω/m,20℃
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Weight per meterg/m
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Resistance per meter
Ω/m,20℃
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Weight per meterg/m
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Resistance per meterΩ/m,20℃
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0.10
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0.007854
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3.142
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0.05576
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180.8
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0.0573
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172
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0.0561
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184.6
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0.0561
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0.12
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0.01131
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3.770
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0.08030
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125.6
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0.0819
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119
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0.0802
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128.2
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0.0802
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0.15
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0.01767
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4.712
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0.1255
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80.36
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0.128
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76.4
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0.125
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82.05
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0.125
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0.17
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0.02270
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5.341
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0.1612
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62.56
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0.165
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59.5
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0.161
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63.88
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0.161
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0.19
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0.02835
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5.969
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0.2013
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50.08
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0.206
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47.6
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0.201
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51.14
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0.201
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0.21
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0.03464
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6.597
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0.2459
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41.00
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0.251
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39.0
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0.246
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41.86
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0.246
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0.25
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0.04909
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7.854
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0.3485
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28.93
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0.356
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27.5
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0.349
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29.54
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0.349
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0.27
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0.05726
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8.482
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0.4065
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24.80
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0.418
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24.3
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0.403
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25.33
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0.403
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|
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0.29
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0.06605
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9.111
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0.4690
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21.50
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0.481
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20.1
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0.469
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21.95
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0.469
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|
0.31
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0.07548
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9.739
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0.5359
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18.81
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0.583
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17.5
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0.573
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19.21
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0.573
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|
0.35
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0.09621
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11.00
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0.6830
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14.76
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0.689
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14.0
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0.683
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15.07
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0.683
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|
|
0.40
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0.1257
|
12.57
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0.8922
|
11.30
|
0.911
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10.7
|
0.892
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11.54
|
0.892
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|
|
0.45
|
0.1590
|
14.14
|
1.129
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8.928
|
1.153
|
8.49
|
1.129
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9.117
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1.129
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|
|
0.50
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0.1963
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15.71
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1.394
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7.232
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1.42
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6.88
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1.39
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7.385
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1.39
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|
|
0.60
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0.2827
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18.85
|
2.007
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5.022
|
2.05
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4.77
|
2.01
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5.128
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2.01
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|
|
0.70
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0.3848
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21.99
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2.732
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3.690
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2.79
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3.51
|
2.73
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3.768
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2.73
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|
|
0.80
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0.5027
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25.13
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3.569
|
2.825
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3.64
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2.69
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3.57
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2.885
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3.57
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|
|
0.90
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0.6362
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28.28
|
4.517
|
2.232
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4.61
|
2.12
|
4.52
|
2.279
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4.52
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|
1.00
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0.7854
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31.42
|
5.576
|
1.808
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5.70
|
1.72
|
5.58
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1.846
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5.58
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|
|
1.20
|
1.131
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37.70
|
8.030
|
1.256
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8.2
|
1.19
|
8.03
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1.282
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8.03
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|
|
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
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|
|
1.80
|
2.545
|
56.55
|
18.07
|
0.5580
|
18.4
|
0.531
|
18.1
|
0.5698
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18.1
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|
|
2.00
|
3.142
|
62.83
|
22.31
|
0.4520
|
22.8
|
0.43
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22.3
|
0.4615
|
22.3
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|
|
2.20
|
3.801
|
69.12
|
26.99
|
0.3736
|
27.6
|
0.355
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27.0
|
0.3814
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27.0
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|
|
2.50
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4.909
|
78.54
|
34.85
|
0.2893
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35.6
|
0.275
|
34.9
|
0.2954
|
34.9
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|
|
2.80
|
6.158
|
87.96
|
43.72
|
0.2306
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44.6
|
0.219
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43.7
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0.2355
|
43.7
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|
|
3.00
|
7.069
|
94.25
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50.19
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0.2009
|
51.2
|
0.191
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50.2
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0.2051
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50.2
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|
|
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
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|
|
4.50
|
15.90
|
141.1
|
112.9
|
0.08928
|
115.3
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0.0849
|
112.9
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0.09117
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112.9
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|
|
5.00
|
19.63
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157.1
|
139.4
|
0.07232
|
142
|
0.0688
|
139
|
0.07385
|
139
|
|
|
5.50
|
23.76
|
172.8
|
168.7
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0.05977
|
172
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0.0568
|
169
|
0.06103
|
169
|
|
|
6.00
|
28.27
|
188.5
|
200.7
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0.05022
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205
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0.0477
|
201
|
0.05128
|
201
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|
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6.50
|
33.18
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204.2
|
235.6
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0.04279
|
241
|
0.0407
|
236
|
0.04370
|
236
|
|
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7.00
|
38.48
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219.9
|
273.2
|
0.03690
|
279
|
0.0351
|
273
|
0.03768
|
273
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