O.D. | Surface de section | Surface superficielle par mètre | Cr20Ni80,Cr30Ni70,Cr15Ni60 | Cr20Ni35,Cr20Ni30 | ||||
Résistivité μΩ.m,20℃1.09~1.20±0.05 | Résistivité μΩ.m,20℃1.04~1.06±0.05 | |||||||
mm | mm2 | cm2/m | Ω/m, 20℃ | m/kg | kg/m | Ω/m, 20℃ | m/kg | kg/m |
0.1 | 0.0078 | 3.14 | 143.9 | 15578 | 0.0000641 | 132.4 | 16228 | 0.0000616 |
0.12 | 0.0113 | 3.77 | 99.9 | 10753 | 0.0000929 | 91.96 | 11202 | 0.0000892 |
0.15 | 0.0177 | 4.71 | 63.94 | 6865 | 0.0001456 | 58.85 | 7151.5 | 0.00014 |
0.17 | 0.0227 | 5.34 | 49.78 | 5353 | 0.0001868 | 45.82 | 5576.3 | 0.000179 |
0.19 | 0.0284 | 5.97 | 39.85 | 4278 | 0.0002337 | 36.86 | 4457.1 | 0.000224 |
0.22 | 0.038 | 6.71 | 29.72 | 3198 | 0.0003126 | 27.36 | 3331.1 | 0.0003 |
0.25 | 0.0491 | 7.85 | 22.86 | 2475 | 0.000404 | 21.19 | 2578.1 | 0.000388 |
0.28 | 0.0616 | 8.8 | 18.35 | 1973 | 0.0005068 | 16.89 | 2054.9 | 0.000487 |
0.3 | 0.0707 | 9.42 | 15.98 | 1718 | 0.000582 | 14.71 | 1790.7 | 0.000558 |
0.32 | 0.0804 | 10.05 | 14.05 | 1511 | 0.0006618 | 12.93 | 1574.4 | 0.000635 |
0.35 | 0.0962 | 11 | 11.74 | 1263 | 0.0007917 | 10.81 | 1315.8 | 0.00076 |
0.4 | 0.1257 | 12.57 | 8.992 | 966.6 | 0.001035 | 8.276 | 1007 | 0.000993 |
0.45 | 0.159 | 14.14 | 7.105 | 764.2 | 0.001309 | 6.539 | 796.1 | 0.00126 |
0.5 | 0.1963 | 15.71 | 5.755 | 0.001616 | 5.297 | 644.8 | 0.00155 | |
0.6 | 0.283 | 18.85 | 4.103 | 429.4 | 0.002329 | 3.749 | 447.3 | 0.00224 |
0.7 | 0.385 | 22 | 3.014 | 315.6 | 0.003169 | 2.754 | 328.8 | 0.00304 |
0.8 | 0.503 | 25.1 | 2.308 | 241.6 | 0.004139 | 2.109 | 251.7 | 0.00397 |
0.9 | 0.636 | 28.3 | 1.823 | 191 | 0.005236 | 199 | 0.00503 | |
1 | 0.785 | 31.4 | 1.477 | 154.8 | 0.00646 | 1.35 | 161.3 | 0.0062 |
1.2 | 1.131 | 37.7 | 0.999 | 107.4 | 0.009311 | 0.9196 | 111.9 | 0.00894 |
1.4 | 1.539 | 44 | 0.734 | 78.95 | 0.01267 | 0.6756 | 82.25 | 0.01216 |
1.6 | 2.01 | 50.3 | 0.562 | 60.45 | 0.06154 | 0.5173 | 62.98 | 0.01588 |
1.8 | 2.54 | 56.5 | 0.444 | 47.84 | 0.0209 | 0.4087 | 49.84 | 0.02006 |
2 | 3.14 | 62.8 | 0.36 | 38.7 | 0.02584 | 0.331 | 40.31 | 0.02408 |
2.2 | 3.8 | 69.1 | 0.297 | 31.98 | 0.03127 | 0.2736 | 33.31 | 0.03002 |
2.6 | 5.309 | 81.68 | 0.2053 | 22.98 | 0.04369 | 0.2109 | 23.84 | 0.04195 |
2.8 | 6.16 | 88 | 0.184 | 19.73 | 0.05068 | 0.1689 | 20.55 | 0.04866 |
3 | 7.07 | 94.2 | 0.16 | 17.19 | 0.05817 | 0.1471 | 17.9 | 0.05587 |
3.5 | 9.62 | 110 | 0.117 | 12.63 | 0.07918 | 0.1081 | 13.16 | 0.07599 |
4 | 12.57 | 125.7 | 0.09 | 9.667 | 0.1034 | 0.08276 | 10.07 | 0.0993 |
4.5 | 15.9 | 141.4 | 0.071 | 7.642 | 0.1309 | 0.06539 | 7.961 | 0.1256 |
5 | 19.63 | 157.1 | 0.056 | 6.19 | 0.1616 | 0.05297 | 6.448 | 0.1551 |
5.5 | 23.8 | 172.8 | 0.049 | 5.105 | 0.1959 | 0.04462 | 5.319 | 0.188 |
6 | 28.3 | 188.5 | 0.041 | 4.294 | 0.2329 | 0.03749 | 4.473 | 0.2236 |
6.5 | 33.2 | 204 | 0.035 | 3.66 | 0.2732 | 0.03194 | 3.813 | 0.2623 |
7 | 38.5 | 220 | 0.03 | 3.156 | 0.3169 | 0.02754 | 3.288 | 0.3041 |
Performances\modèle | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
Principaux composants chimiques % | Ni | restant | restant | 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 | restant | restant | restant | |
Max. Température de travail | 1200 | 1250 | 1150 | 1100 | 1100 | |
℃ | ||||||
Point de fusion | 1400 | 1380 | 1390 | 1390 | 1390 | |
℃ | ||||||
Densité | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
g/cm3 | ||||||
Résistivité électrique | 1.09 | 1.18 | 1.12 | 1 | 1.04 | |
μΩ.m,20℃ | ||||||
Pourcentage d'allongement | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | |
% | ||||||
Chaleur spécifique | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 | |
J/g.℃ | ||||||
Coefficient de conductivité thermique | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
KJ/m.h.℃ | ||||||
Coefficient de dilatation linéaire | 18 | 17 | 17 | 19 | 19 | |
α×10-6/℃ | ||||||
Constitution microscopique | austénite | austénite | austénite | austénite | austénite | |
Magnétisme | amagnétique | amagnétique | amagnétique | amagnétique | amagnétique |