# Electrical Conductivity and Resistivity for Iron and Iron-Based Alloys

## Material | ## Conductivity | ## Resistivity | ## Reference | ## Notes | |

(% IACS) | (Siemens/m) | (Ohm-m) | (See Below) | ||

## Iron | |||||

Iron | 18.00 | 1.044E+07 | 9.579E-08 | ECTM | |

Iron Ignot (99.9% Fe) | 15.60 | 9.048E+06 | 1.105E-07 | CSNDT | |

Low-carbon white iron | 3.25 | 5.300E-07 | MHASM1 | conductivity converted from resistivity | |

Martensitic nickel-chromium iron | 2.16 | 8.000E-07 | MHASM1 | conductivity converted from resistivity | |

High-silicon iron | 3.45 | 5.000E-07 | MHASM1 | conductivity converted from resistivity | |

High-nickel iron | 1.0-1.2 | 1.4E-6--1.7E-6 | MHASM1 | conductivity converted from resistivity | |

Nickel-chromium-silicon iron | 1.0-1.2 | 1.5E-6--1.7E-6 | MHASM1 | conductivity converted from resistivity | |

High-aluminum iron | 0.72 | 2.400E-06 | MHASM1 | conductivity converted from resistivity | |

Medium-silicon ductile iron | 2.0-3.0 | 5.8E-7--8.7E-7 | MHASM1 | conductivity converted from resistivity | |

High-nickel ductile (20% Ni) | 1.69 | 1.020E-06 | MHASM1 | conductivity converted from resistivity | |

Carbon and Low-Alloy Steel | |||||

1008 (Annealed) | 11.81 | 1.460E-07 | MHASM1 | conductivity converted from resistivity | |

1010 | 12.06 | 1.430E-07 | MHASM1 | conductivity converted from resistivity | |

1015 (Annealed) | 10.84 | 1.590E-07 | MHASM1 | conductivity converted from resistivity | |

1016 (Annealed) | 10.78 | 1.600E-07 | MHASM1 | conductivity converted from resistivity | |

1018 (Annealed) | 10.84 | 1.590E-07 | MHASM1 | conductivity converted from resistivity | |

1020 | 10.84 | 1.590E-07 | MHASM1 | conductivity converted from resistivity | |

1022 (Annealed) | 10.84 | 1.590E-07 | MHASM1 | conductivity converted from resistivity | |

1025 (Annealed) | 10.84 | 1.590E-07 | MHASM1 | conductivity converted from resistivity | |

1029 (Annealed) | 10.78 | 1.600E-07 | MHASM1 | conductivity converted from resistivity | |

1030 (Annealed) | 10.39 | 1.660E-07 | MHASM1 | conductivity converted from resistivity | |

1035 (Annealed) | 10.58 | 1.630E-07 | MHASM1 | conductivity converted from resistivity | |

1040 (Annealed) | 10.78 | 1.600E-07 | MHASM1 | conductivity converted from resistivity | |

1042 (Annealed) | 10.08 | 1.710E-07 | MHASM1 | conductivity converted from resistivity | |

1043 (Annealed) | 10.58 | 1.630E-07 | MHASM1 | conductivity converted from resistivity | |

1045 (Annealed) | 10.64 | 1.620E-07 | MHASM1 | conductivity converted from resistivity | |

1046 | 10.58 | 1.630E-07 | MHASM1 | conductivity converted from resistivity | |

1050 (Annealed) | 10.58 | 1.630E-07 | MHASM1 | conductivity converted from resistivity | |

1055 | 10.58 | 1.630E-07 | MHASM1 | conductivity converted from resistivity | |

1060 | 9.58 | 1.800E-07 | MHASM1 | conductivity converted from resistivity | |

1065 | 10.58 | 1.630E-07 | MHASM1 | conductivity converted from resistivity | |

1070 | 10.26 | 1.680E-07 | MHASM1 | conductivity converted from resistivity | |

1078 (Annealed) | 9.58 | 1.800E-07 | MHASM1 | conductivity converted from resistivity | |

1080 | 9.58 | 1.800E-07 | MHASM1 | conductivity converted from resistivity | |

1095 | 9.58 | 1.800E-07 | MHASM1 | conductivity converted from resistivity | |

1137 | 10.14 | 1.700E-07 | MHASM1 | conductivity converted from resistivity | |

1141 | 10.14 | 1.700E-07 | MHASM1 | conductivity converted from resistivity | |

1151 | 10.14 | 1.700E-07 | MHASM1 | conductivity converted from resistivity | |

1524 | 8.29 | 2.080E-07 | MHASM1 | conductivity converted from resistivity | |

1524 (Annealed) | 10.78 | 1.600E-07 | MHASM1 | conductivity converted from resistivity | |

1552 | 10.58 | 1.630E-07 | MHASM1 | conductivity converted from resistivity | |

4130 (Hardened and tempered) | 7.73 | 2.230E-07 | MHASM1 | conductivity converted from resistivity | |

4140 (Hardened and tempered) | 7.84 | 2.200E-07 | MHASM1 | conductivity converted from resistivity | |

4626 (Normalized and tempered) | 8.62 | 2.000E-07 | MHASM1 | conductivity converted from resistivity | |

4815 | 6.63 | 2.600E-07 | MHASM1 | conductivity converted from resistivity | |

5132 | 8.21 | 2.100E-07 | MHASM1 | conductivity converted from resistivity | |

5140 (Hardened and tempered) | 7.56 | 2.280E-07 | MHASM1 | conductivity converted from resistivity | |

## Wrought Stainless Steel (annealed) | |||||

201 | 2.50 | 6.900E-07 | MHASM1 | conductivity converted from resistivity | |

202 | 2.50 | 6.900E-07 | MHASM1 | conductivity converted from resistivity | |

301 | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

302 | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

302B | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

303 | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

304 | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

302Cu | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

304N | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

304 | 2.50 | 1.450E+06 | 6.897E-07 | ECTM | |

304 | 2.50 | 1.450E+06 | 6.897E-07 | CSNDT | |

305 | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

308 | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

309 | 2.21 | 7.800E-07 | MHASM1 | conductivity converted from resistivity | |

310 | 2.21 | 7.800E-07 | MHASM1 | conductivity converted from resistivity | |

314 | 2.24 | 7.700E-07 | MHASM1 | conductivity converted from resistivity | |

316 | 2.33 | 7.400E-07 | MHASM1 | conductivity converted from resistivity | |

316N | 2.33 | 7.400E-07 | MHASM1 | conductivity converted from resistivity | |

316 | 2.30 | 1.334E+06 | 7.496E-07 | CSNDT | |

317 | 2.33 | 7.400E-07 | MHASM1 | conductivity converted from resistivity | |

317L | 2.18 | 7.900E-07 | MHASM1 | conductivity converted from resistivity | |

321 | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

329 | 2.30 | 7.500E-07 | MHASM1 | conductivity converted from resistivity | |

330 | 1.69 | 1.020E-06 | MHASM1 | conductivity converted from resistivity | |

347 | 2.36 | 7.300E-07 | MHASM1 | conductivity converted from resistivity | |

347 | 2.40 | 1.392E+06 | 7.184E-07 | CSNDT | |

384 | 2.18 | 7.900E-07 | MHASM1 | conductivity converted from resistivity | |

405 | 2.87 | 6.000E-07 | MHASM1 | conductivity converted from resistivity | |

410 | 3.02 | 5.700E-07 | MHASM1 | conductivity converted from resistivity | |

414 | 2.46 | 7.000E-07 | MHASM1 | conductivity converted from resistivity | |

416 | 3.02 | 5.700E-07 | MHASM1 | conductivity converted from resistivity | |

420 | 3.13 | 5.500E-07 | MHASM1 | conductivity converted from resistivity | |

429 | 2.92 | 5.900E-07 | MHASM1 | conductivity converted from resistivity | |

430 | 2.87 | 6.000E-07 | MHASM1 | conductivity converted from resistivity | |

430F | 2.87 | 6.000E-07 | MHASM1 | conductivity converted from resistivity | |

431 | 2.39 | 7.200E-07 | MHASM1 | conductivity converted from resistivity | |

434 | 2.87 | 6.000E-07 | MHASM1 | conductivity converted from resistivity | |

436 | 2.87 | 6.000E-07 | MHASM1 | conductivity converted from resistivity | |

439 | 2.74 | 6.300E-07 | MHASM1 | conductivity converted from resistivity | |

440A | 2.87 | 6.000E-07 | MHASM1 | conductivity converted from resistivity | |

440C | 2.87 | 6.000E-07 | MHASM1 | conductivity converted from resistivity | |

444 | 2.78 | 6.200E-07 | MHASM1 | conductivity converted from resistivity | |

446 | 2.57 | 6.700E-07 | MHASM1 | conductivity converted from resistivity | |

PH 13-8 Mo | 1.69 | 1.020E-06 | MHASM1 | conductivity converted from resistivity | |

15-5 PH | 2.24 | 7.700E-07 | MHASM1 | conductivity converted from resistivity | |

17-4 PH | 2.16 | 8.000E-07 | MHASM1 | conductivity converted from resistivity | |

17-7 PH | 2.08 | 8.300E-07 | MHASM1 | conductivity converted from resistivity | |

## Wrought and P/M Superalloys | |||||

Elgiloy | 1.73 | 9.950E-07 | MHASM1 | conductivity converted from resistivity | |

Hastelloy "A" | 1.40 | 8.120E+05 | 1.232E-06 | CSNDT | |

Hastelloy "B" & "C" | 1.30 | 7.540E+05 | 1.326E-06 | CSNDT | |

Hastelloy "D" | 1.50 | 8.700E+05 | 1.149E-06 | CSNDT | |

Hastelloy "X" | 1.50 | 8.700E+05 | 1.149E-06 | ECTM | |

Hastelloy "X" | 1.46 | 1.180E-06 | MHASM1 | conductivity converted from resistivity | |

Haynes 150 | 2.13 | 8.100E-07 | MHASM1 | conductivity converted from resistivity | |

Haynes 188 | 1.87 | 9.220E-07 | MHASM1 | conductivity converted from resistivity | |

Haynes 230 | 1.38 | 1.250E-06 | MHASM1 | conductivity converted from resistivity | |

Incoloy 800 | 1.74 | 9.890E-07 | MHASM1 | conductivity converted from resistivity | |

Incoloy 825 | 1.53 | 1.130E-06 | MHASM1 | conductivity converted from resistivity | |

Incoloy 903 | 2.83 | 6.100E-07 | MHASM1 | conductivity converted from resistivity | |

Incoloy 907 | 2.47 | 6.970E-07 | MHASM1 | conductivity converted from resistivity | |

Incoloy 909 | 2.37 | 7.280E-07 | MHASM1 | conductivity converted from resistivity | |

Inconel 600 | 1.70 | 9.860E+05 | 1.014E-06 | ECTM | |

Inconel 600 | 1.67 | 1.030E-06 | MHASM1 | conductivity converted from resistivity | |

Inconel 601 | 1.45 | 1.190E-06 | MHASM1 | conductivity converted from resistivity | |

Inconel 617 | 1.41 | 1.220E-06 | MHASM1 | conductivity converted from resistivity | |

Inconel 625 | 1.34 | 1.290E-06 | MHASM1 | conductivity converted from resistivity | |

Inconel 690 | 11.65 | 1.480E-07 | MHASM1 | conductivity converted from resistivity | |

Inconel 718 | 1.38 | 1.250E-06 | MHASM1 | conductivity converted from resistivity | |

Inconel X750 | 1.41 | 1.220E-06 | MHASM1 | conductivity converted from resistivity | |

L-605 | 1.94 | 8.900E-07 | MHASM1 | conductivity converted from resistivity | |

M-252 | 1.58 | 1.090E-06 | MHASM1 | conductivity converted from resistivity | |

MP35N | 1.71 | 1.010E-06 | MHASM1 | conductivity converted from resistivity | |

Nimonic 263 | 1.50 | 1.150E-06 | MHASM1 | conductivity converted from resistivity | |

Nimonic 105 | 1.32 | 1.310E-06 | MHASM1 | conductivity converted from resistivity | |

Nimonic 115 | 1.24 | 1.390E-06 | MHASM1 | conductivity converted from resistivity | |

Nimonic 75 | 1.39 | 1.240E-06 | MHASM1 | conductivity converted from resistivity | |

Nimonic 80A | 1.36 | 1.270E-06 | MHASM1 | conductivity converted from resistivity | |

Nimonic 90 | 1.46 | 1.180E-06 | MHASM1 | conductivity converted from resistivity | |

Nimonic PE.16 | 1.57 | 1.100E-06 | MHASM1 | conductivity converted from resistivity | |

Nimonic PK.33 | 1.37 | 1.260E-06 | MHASM1 | conductivity converted from resistivity | |

Rene 41 | 1.32 | 1.308E-06 | MHASM1 | conductivity converted from resistivity | |

Stellite 6B | 1.89 | 9.100E-07 | MHASM1 | conductivity converted from resistivity | |

Udimet 500 | 1.43 | 1.203E-06 | MHASM1 | conductivity converted from resistivity | |

Waspaloy | 1.39 | 1.240E-06 | MHASM1 | conductivity converted from resistivity |

**CSNDT**=CSNDT compiled by Eddy Current Technology Incorporated**ECT**=Eddy Current Technology Incorporated**ECTM**=Eddy Current Testing Manual on Eddy Current Method compiled by Eddy Current Technology Incorporated**MHASM1**=ASM Metals Handbook--Volume 1, Tenth Edition

Compiled by the Collaboration for NDT Education, March 2002.