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Nickel Chrome alloys

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     Nickel-chromium(Ni-Cr), high-temperature strength of Ni-Cr-Fe products is higher than that of Fe-Cr-Al. The product is not easily to deform under high temperature, including the following characteristics: entrenched structure, quite good plasticity, easy to repair, high radiance, no or weak magnetism, strong corrosion resistance and long service life. Cr20Ni80, Cr15Ni60, Cr30Ni70, Cr20Ni35 and Cr20Ni30 manufactured by our company are the first choice for producing high-quality electrical heating element.
 
List of alloys 
 
Nickel-chromium (NiCr) alloys: NI80CR20, NI70CR30, NI60CR15, NI35CR20, NI30CR20
 
Date Sheet 

 

Main characteristics of Nichrome electric heating alloys

Alloy Nomenclature
Performance
Cr20Ni80 Cr30Ni70 Cr15Ni60 Cr20Ni35 Cr20Ni30
Main Chemical composition Ni Rest Rest 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 Rest Rest Rest
Max. continuous service temp. of element 1200 1250 1150 1100 1100
Resistivity at 20ºC (μΩ.m) 1.09 1.18 1.12 1.0 1.04
Density (g/cm 3) 8.40 8.10 8.20 7.90 7.90
Thermal conductivity(KJ/m.h.ºC) 60.3 45.2 45.2 43.8 43.8
Coefficient of lines expansion (α×10 -6/ºC) 18.0 17.0 17.0 19.0 19.0
Melting point (approx.)( ºC) 1400 1380 1390 1390 1390
Elongation rate (%) >20 >20 >20 >20 >20
Micrographic structure austenite austenite austenite austenite austenite
Magnetic properties nonmagnetic nonmagnetic Weak magnetic Weak magnetic Weak magnetic

Nichrome alloys with the diameters and characteristics(1)

Dia.(mm) Cross sectional area(mm 2) Cr20Ni80 Cr30Ni70
Resistance per meter (20ºC Ω/m) Length per kg(m/kg) Weight per Meter(kg/m) Resistance per meter (20ºC Ω/m) Length per kg(m/kg) Weight per Meter(kg/m)
0.10 0.007854 138.8 15158.405 0.00006597 150.2 15718.328 0.00006362
0.12 0.01131 96.38 10526.316 0.000095 104.3 10915.839 0.00009161
0.15 0.01767 61.68 6738.544 0.0001484 66.77 6988.120 0.0001431
0.17 0.0227 48.02 5243.838 0.0001907 51.99 5437.738 0.0001839
0.19 0.02835 38.44 4198.153 0.0002382 41.62 4353.505 0.0002297
0.21 0.03464 31.47 3437.607 0.0002909 34.07 3563.792 0.0002806
0.25 0.04909 22.21 2425.418 0.0004123 24.04 2515.091 0.0003976
0.27 0.05726 19.04 2079.434 0.0004809 20.61 2156.102 0.0004638
0.29 0.06605 16.5 1802.451 0.0005548 17.86 1869.159 0.000535
0.31 0.07548 14.44 1577.287 0.000634 15.63 1635.590 0.0006114
0.35 0.09621 11.33 1237.317 0.0008082 12.26 1283.203 0.0007793
0.40 0.1257 8.674 946.970 0.001056 9.39 982.318 0.001018
0.45 0.159 6.853 748.503 0.001336 7.419 776.398 0.001288
0.50 0.1963 5.551 606.428 0.001649 6.01 628.931 0.00159
0.60 0.2827 3.855 421.053 0.002375 4.173 436.681 0.00229
0.70 0.3848 2.832 309.310 0.003233 3.066 320.821 0.003117
0.80 0.5027 2.168 236.855 0.004222 2.348 245.580 0.004072
0.90 0.6362 1.713 187.126 0.005344 1.855 194.062 0.005153
1.00 0.7854 1.388 151.584 0.006597 1.502 157.183 0.006362
1.20 1.131 0.9638 105.263 0.0095 1.043 109.158 0.009161
1.40 1.539 0.7081 77.340 0.01293 0.7665 80.192 0.01247
1.60 2.011 0.5421 59.207 0.01689 0.5869 61.387 0.01629
1.80 2.545 0.4283 46.773 0.02138 0.4637 48.520 0.02061
2.00 3.142 0.347 37.893 0.02639 0.3756 39.293 0.02545
2.20 3.801 0.2867 31.319 0.03193 0.3104 32.478 0.03079
2.25 3.976 0.2741 29.940 0.0334 0.2968 31.046 0.03221
2.80 6.158 0.177 19.335 0.05172 0.1916 20.048 0.04988
3.00 7.069 0.1542 16.841 0.05938 0.1669 17.464 0.05726
3.50 9.621 0.1133 12.373 0.08082 0.1226 12.832 0.07793
4.00 12.57 0.08674 9.470 0.1056 0.0939 9.823 0.1018
4.50 15.9 0.06853 7.485 0.1336 0.07419 7.764 0.1288
5.00 19.63 0.05551 6.064 0.1649 0.0601 6.289 0.159
5.50 23.76 0.04588 5.010 0.1996 0.04967 5.198 0.1924
6.00 28.27 0.03855 4.211 0.2375 0.04173 4.367 0.229
6.50 33.18 0.03285 3.588 0.2787 0.03556 3.720 0.2688
7.00 38.48 0.02832 3.093 0.3233 0.03066 3.208 0.3117

   

Dia.(mm) Cross sectional area(mm 2) Cr15Ni60 Cr20Ni35,Cr20Ni30
Resistance per meter (20ºC Ω/m) Length per kg (m/kg) Weight per Meter(kg/m) Resistance per meter (20ºC Ω/m) Length per kg(m/kg) Weight per Meter(kg/m)
0.10 0.007854 142.6 15527.950 0.0000644 132.4 16116.035 0.00006205
0.12 0.01131 99.03 10782.834 0.00009274 91.96 11191.942 0.00008935
0.15 0.01767 63.38 6901.311 0.0001449 58.85 7163.324 0.0001396
0.17 0.0227 49.34 5373.455 0.0001861 45.82 5577.245 0.0001793
0.19 0.02835 39.5 4301.075 0.0002325 36.68 4464.286 0.000224
0.21 0.03464 32.34 3521.127 0.000284 30.03 3654.971 0.0002736
0.25 0.04909 22.82 2484.472 0.0004025 21.19 2578.649 0.0003878
0.27 0.05726 19.56 2129.925 0.0004695 18.16 2210.922 0.0004523
0.29 0.06605 16.96 1846.381 0.0005416 15.75 1916.443 0.0005218
0.31 0.07548 14.84 1615.770 0.0006189 13.78 1677.008 0.0005963
0.35 0.09621 11.64 1267.588 0.0007889 10.81 1315.616 0.0007601
0.40 0.1257 8.913 970.874 0.00103 8.276 1007.354 0.0009927
0.45 0.159 7.042 766.871 0.001304 6.539 796.178 0.001256
0.50 0.1963 5.704 621.118 0.00161 5.297 644.745 0.001551
0.60 0.2827 3.961 431.406 0.002318 3.678 447.628 0.002234
0.70 0.3848 2.91 316.857 0.003156 2.702 328.947 0.00304
0.80 0.5027 2.228 242.601 0.004122 2.069 251.826 0.003971
0.90 0.6362 1.761 191.681 0.005217 1.635 198.965 0.005026
1.00 0.7854 1.426 155.280 0.00644 1.324 161.160 0.006205
1.20 1.131 0.9903 107.828 0.009274 0.9196 111.919 0.008935
1.40 1.539 0.7276 79.239 0.01262 0.6756 82.237 0.01216
1.60 2.011 0.557 60.643 0.01649 0.5173 62.972 0.01588
1.80 2.545 0.4401 47.916 0.02087 0.4087 49.751 0.0201
2.00 3.142 0.3565 38.820 0.02576 0.331 40.290 0.02482
2.20 3.801 0.2946 32.082 0.03117 0.2736 33.300 0.03003
2.25 3.976 0.2817 30.675 0.0326 0.2616 31.837 0.03141
2.80 6.158 0.1819 19.806 0.05049 0.1689 20.559 0.04864
3.00 7.069 0.1584 17.253 0.05796 0.1471 17.908 0.05584
3.50 9.621 0.1164 12.676 0.07889 0.1081 13.156 0.07601
4.00 12.57 0.08913 9.709 0.103 0.08276 10.074 0.09927
4.50 15.9 0.07042 7.669 0.1304 0.06539 7.962 0.1256
5.00 19.63 0.05704 6.211 0.161 0.05297 6.447 0.1551
5.50 23.76 0.04714 5.133 0.1948 0.04377 5.328 0.1877
6.00 28.27 0.03961 4.314 0.2318 0.03678 4.476 0.2234
6.50 33.18 0.03375 3.675 0.2721 0.03134 3.815 0.2621
7.00 38.48 0.0291 3.169 0.3156 0.02702 3.289 0.304

Micron wires 

Up to 0.025-0.2mm, Available material: 6J22, Pure Nickel, NI80CR20
Other material, Diamater range: 0.06mm-0.2mm; 


Danyang Bosheng Alloys Material Factory Limited occupies over 12000 sq meters of manufacturing located in Dangyang city, Jiangsu provenience close to Hu-Ning expressway and railway, about 2hours ride to Shanghai. 

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