Specifications and uses of high temperature electric furnace wire products:
Material: Cr20Ni80, Cr15Ni60.
Specification: φ0.03mm~φ1.0mm
Uses: Nickel-chromium materials have high high-temperature strength and strong plasticity.
It is widely used in industrial electric furnaces, household appliances, and far-infrared devices.
High temperature electric furnace wire
Main technical properties of nickel-chromium alloy wire:
Grade
Cr20Ni80 Cr30Ni70 Cr15Ni60 Cr20Ni35 Cr20Ni30
Performance
Main chemical composition% Ni remaining amount remaining amount 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
Margin margin margin
The highest use temperature of the component ℃
1200 1250 1150 1100 1100
Melting point °C
1400 1380 1390 1390 1390
Density g/cm3
8.40 8.10 8.20 7.90 7.90
Resistivity μΩ·m, 20℃
1.09±0.05
1.18±0.05
1.11±0.05
1.04±0.05
1.04±0.05
Elongation%
≥20
≥20
≥20
≥20
≥20
Specific heat J/g.℃
0.440
0.461
0.494
0.500
0.500
Thermal conductivity KJ/m.h℃
60.3 45.2 45.2 43.8 43.8
Linear expansion coefficient a×10-6/℃ (20～1000℃)
18.0 17.0 17.0 19.0 19.0
Microstructure
Austenite austenite austenite austenite austenite
Magnetic non-magnetic non-magnetic non-magnetic non-magnetic non-magnetic
Design parameters of nickel-chromium wire:
Wire diameter
(mm)
Cross-sectional area
(mm2)
Per meter
Surface area
cm2/m
Cr20Ni80
Cr30Ni70
Cr15Ni60
Weight per meter
kg/m
Resistance per meter
Ω/m,20℃
Weight per meter
kg/m
Resistance per meter
Ω/m,20℃
Weight per meter
kg/m
Resistance per meter
Ω/m,20℃
0.10
0.007854
3.142
0.00006597
138.8
0.00006362
150.2
0.00006440
142.6
0.12
0.01131
3.770
0.00009500
96.38
0.00009161
104.3
0.00009274
99.03
0.15
0.01767
4.712
0.0001484
61.68
0.0001431
66.77
0.0001449
63.38
0.17
0.02270
5.341
0.0001907
48.02
0.0001839
51.99
0.0001861
49.34
0.19
0.02835
5.969
0.0002382
38.44
0.0002297
41.62
0.0002325
39.50
0.21
0.03464
6.597
0.0002909
31.47
0.0002806
34.07
0.0002840
32.34
0.25
0.04909
7.854
0.0004123
22.21
0.0003976
24.04
0.0004025
22.82
0.27
0.05726
8.482
0.0004809
19.04
0.0004638
20.61
0.0004695
19.56
0.29
0.06605
9.111
0.0005548
16.50
0.0005350
17.86
0.0005416
16.96
0.31
0.07548
9.739
0.0006340
14.44
0.0006114
15.63
0.0006189
14.84
0.35
0.09621
11.00
0.0008082
11.33
0.0007793
12.26
0.0007889
11.64
0.40
0.1257
12.57
0.001056
8.674
0.001018
9.390
0.001030
8.913
0.45
0.1590
14.14
0.001339
6.835
0.001288
7.419
0.001304
7.042
0.50
0.1963
15.71
0.001469
5.551
0.001590
6.010
0.001610
5.704
0.60
0.2827
18.85
0.002375
3.855
0.002290
4.173
0.002318
3.961
0.70
0.3848
21.99
0.003233
2.832
0.003117
3.066
0.003156
2.910
0.80
0.5027
25.13
0.004222
2.168
0.004072
2.348
0.004122
2.228
0.90
0.6362
28.27
0.005344
1.713
0.005153
1.855
0.005217
1.761
1.00
0.7854
31.42
0.006597
1.388
0.006362
1.502
0.006440
1.426
1.20
1.131
37.70
0.009500
0.9638
0.009161
1.043
0.009274
0.9903
1.40
1.539
43.98
0.01293
0.7081
0.01247
0.7665
0.01262
0.7276
1.60
2.011
50.27
0.01689
0.5421
0.01629
0.5869
0.01649
0.5570
1.80
2.545
56.55
0.02138
0.4283
0.02061
0.4637
0.02087
0.4401
2.00
3.142
62.83
0.02639
0.3470
0.02545
0.3756
0.02576
0.3565
2.20
3.801
69.12
0.03139
0.2867
0.03079
0.3104
0.03117
0.2946
2.50
3.976
70.69
0.03340
0.2741
0.03221
0.2968
0.03260
0.2817
2.80
6.158
87.96
0.05172
0.1770
0.04988
0.1916
0.05049
0.1819
3.00
7.069
94.25
0.05938
0.1542
0.05726
0.1669
0.05796
0.1584
3.50
9.621
110.0
0.08082
0.1133
0.07793
0.1226
0.07889
0.1164
4.00
12.57
125.7
0.1056
0.08674
0.1018
0.09390
0.1030
0.08913
4.50
15.90
141.4
0.1336
0.06853
0.1288
0.07419
0.1304
0.07042
5.00
19.63
157.1
0.1649
0.05551
0.1590
0.06010
0.1610
0.05704
5.50
23.76
172.8
0.1996
0.04588
0.1924
0.04967
0.1948
0.04714
6.00
28.27
188.5
0.2375
0.03855
0.2290
0.04173
0.2318
0.03961
6.50
33.18
204.2
0.2787
0.03285
0.2688
0.03556
0.2721
0.03375
7.00
38.48
219.9
0.3233
0.02832
0.3117
0.03066
0.3156
0.02910
Product specifications
Cold drawn alloy wire
diameter
φ1.0-φ10.0mm
Hot rolled alloy disk element
diameter
φ8.0-φ12.0mm
Cold rolled alloy strip
thickness
0.5-3.5mm
width
5.0-45.0mm
Hot rolled alloy strip
thickness
3.0-6.0mm
width
12.0-45.0mm
Axis bright filament
diameter
φ0.1-φ1.0mm
Axis bright flat wire
thickness
0.08-1.50mm
width
0.5-5.0mm
delivery status
1. Availability
Wire and coil are supplied in bright white or soft oxidized color.
Except for special requirements, strips are generally supplied in annealed oxidation color.
After the filaments and flat filaments are annealed with protective gas, they are supplied in a bright and soft state.
2. Product packaging
Wire and strip are wrapped with packing cloth and supplied in rolls.
Thin wire and flat wire are supplied in plastic package around the axis.
3. If the export products and users have special requirements, they should be resolved through consultation.
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