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Position: Products |
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| Code: 0Cr25AL5、0Cr21AL6Nb、0Cr27AL7Mo2、Cr20Ni80 |
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| Material: Spring wire |
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| Specifications: 300W-4000W |
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| 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 |
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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 |
21.0～23.0 |
26.5～27.8 |
|
AL |
4.5～6.5 |
5.0～7.0 |
6.0～7.0 |
|
Fe |
Rest |
Rest |
Rest |
|
Re |
Rest |
Rest |
Rest |
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Nb:0.5 |
Nb:0.5 |
|
Max.continuous service
Temp. of element |
1250 |
1350 |
1400 |
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Melting Point |
1500 |
1510 |
1520 |
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密度g/cm3 |
7.10 |
7.10 |
7.10 |
|
Resistivity
μΩ·m，20℃ |
1.42±0.07 |
1.45±0.07 |
1.53±0.07 |
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Tensile strength
Mpa |
630～780 |
650～800 |
680～830 |
|
Elongation at rupture |
≥12 |
≥12 |
≥10 |
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Repeat Bending Frequency |
≥5 |
≥5 |
≥5 |
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Fast life h/℃ |
≥80/1300 |
≥80/1350 |
≥80/1350 |
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Specific heat J/g.℃ |
0.494 |
0.494 |
0.494 |
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Thermal conductivity
KJ/m.h℃ |
46.1 |
46.1 |
45.2 |
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Coefficient of lines expansion
a×10-6/℃
（20～1000℃ |
16.0 |
16.0 |
16.0 |
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Hardness HB |
200～260 |
200～260 |
200～260 |
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Micrographic struction |
Ferrite |
Ferrite |
Ferrite |
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Magnetic properties |
Magnetic |
Magnetic |
Magnetic |
Technical parameters of spring wire Table:
|
Dia. |
Cross Sectional area
(mm2) |
Surface per meter
cm2/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 |
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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 |
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0.27 |
0.05726 |
8.482 |
0.0004065 |
24.80 |
0.0004065 |
25.33 |
0.0004065 |
26.7 |
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0.29 |
0.06605 |
9.111 |
0.0004690 |
21.50 |
0.0004690 |
21.95 |
0.0004690 |
23.2 |
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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 |
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0.40 |
0.1257 |
12.57 |
0.0008922 |
11.30 |
0.0008922 |
11.54 |
0.0008922 |
12.19 |
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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 |
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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:
1、Heating wire in the design of the power wiring methods shall be based on reasonable surface load, the correct selection of wire diameter.
2、Electric 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.
3、Electric wire in the wiring installation methods should be designed properly connected.
4、In 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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