NESS ENGINEERING
TECHNICAL DATA
METAL / ALLOY RESISTIVITY

The purpose of this page is to give the viewer some idea of the relative resistive properties of a variety of materials that can be used in pulsed power, high voltage, and power conditioning applications. The data here has been taken from a number of sources including manufacturers data sheets, etc.  Because actual conditions of measurement may vary, the reader is advised to contact the manufacturer for detailed information once a specific application has been defined.  Ness Engineering is NOT a representative or dealer of any of these materials.
 

 Pure Metals  Metal Alloys

Metal

Resistivity

(mW-cm.)

Resistivity

(Ohm / mil ft.)

Temperature Coefficient of Resistance / deg. C

Aluminum

2.7

16.2

0.004

Antimony

40.0

241.0

0.0036

Beryllium

4.5

27.0

0.025

Bismuth

115.0

692.0

0.004

Cadmium

7.4

44.5

0.004

Cerium

75.0

451.0

0.0009

Cesium (liquid)

20.0

12.0

 

Chromium

13.0

78.0

0.003

Cobalt

9.0

54.0

0.006

Copper

1.7

10.2

0.004

Gallium (liquid)

17.4

105.0

 

Gold

2.4

14.4

0.0035

Hafnium

35.0

210.0

0.004

Indium

8.4

50.0

0.005

Iridium

5.3

31.9

0.0039

Iron

9.7

58.5

0.006

Lead

21.0

126.0

0.004

Lithium

9.0

54.0

0.005

Magnesium

4.5

27.0

0.003

Manganese

185.0

1113.0

 

Mercury (liquid)

96.0

577.0

0.0009

Molybdenum

5.6

33.5

0.004

Nickel

7.0

42.0

0.006

Niobium

13.0

78.0

0.004

Osmium

9.0

54.0

0.004

Palladium

10.8

65.0

0.0035

Platinum

10.5

63.2

0.0039

Plutonium

141.0

848.0

 

Potassium

7.0

42.0

 

Rhenium

19.0

114.0

0.004

Rhodium

4.7

28.2

0.0045

Rubidium

12.5

75.0

 

Selenium

12.0

72.0

 

Silver

1.6

9.65

0.0038

Sodium

4.5

27.0

 

Strontium

23.0

138.0

 

Tantalum

13.0

78.0

0.0035

Thallium

18.0

108.0

 

Thorium

18.0

108.0

0.003

Tin

11.4

68.6

0.0045

Titanium

43.0

259.0

0.0035

Tungsten

5.6

34.0

0.0045

Uranium

30.0

180.0

 

Vanadium

25.0

150.0

0.003

Zinc

5.9

35.5

0.004

Zirconium

41.0

247.0

0.0044


Alloy / Composition

Resistivity

(mW-cm.)

Resistivity

(Ohm / mil ft.)

Temperature Coefficient of Resistance / deg. C

Aluminum Alloys

 

 

 

Aluminum Alloy 5052 

97 Al, 2 Mg, .5 Cr

5

30

.004

Copper Alloys

 

 

 

Copper Alloy 30 

98 Cu, 2 Ni

5

30

.0014

Cuprothal 60* 

94 Cu, 6 Ni

10

60

.0014

Phosphor Bronze 

91 Cu, 8 Sn, .25 P

13

65

 

Copper Alloy 90 

89 Cu, 11 Ni

15

90

.0005

Manganin 

87 Cu, 13 Mn

48

290

.00001

Midohm*, Cuprothal 180* 

78 Cu, 22 Ni

30

180

.0002

Brass 

65 Cu, 35 Zn

7

42

.002

Nickel, Silver 

64 Cu, 18 Zn, 18 Ni

28

168

.0003

Constantan 

57 Cu, 43 Ni

49

294

.00001

Iron Alloys

 

 

 

Carbon Steel 

99 Fe, 1 C

20

120

.005

High Silicon Steel 

96 Fe, 4 Si

59

354

.002

Iron Alloy 750 

81 Fe, 15 Cr, 4 Al

125

750

.00015

18-8 Stainless Steel 

74 Fe, 18 Cr, 8 Ni

73

440

.00094

Iron Alloy 875 

72 Fe, 22.5 Cr, 5.5 Al

146

875

.00002

Invar 

65 Fe, 35 Ni

81

485

.00135

Alnico I* 

62 Fe, 21 Ni, 12 Al, 5 Co

75

450

.002

Iron Alloy 142 

58 Fe, 42 Ni

67

400

.0012

High Resistance Alloy 

55 Fe, 37.5 Cr, 7.5 Al

166

1000

.001

Chromax*, Chromel D* 

45 Fe, 35 Ni, 20 Cr

100

600

.00036

Nickel Alloys

 

 

 

Nichrome V*, Nikrothal 8*,Chromel A* 

80 Ni, 20 Cr

108

650

.0001

Hytemco* 

72 Ni, 38 Fe

20

120

.0042

Chromel AA* 

68 Ni, 20 Cr, 8 Fe

117

700

.00011

Nichrome*, Chromel C*, Nicrothal6* 

60 Ni, 16 Cr, 24 Fe

112

675

.00015

Nickel Alloy R63 

95 Ni, 4 Mn, 1 Si

22

135

.003

Monel 

67 Ni, 30 Cu, 1.4 Fe, 1 Mn

42

252

.002

Silver Alloys

 

 

 

Sterling Silver 

92.5 Ag, 7.5 Cu

2

12

.004

Contact Alloy 

85 Ag, 15 Cd

5

30

.004

 

 *Proprietary Name

Temperature Coefficients are approximate values at room temperature and are usually much higher at high temperatures.

 


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Ness Engineering, Inc.
P.O. Box 261501
San Diego, CA 92196
(858) 566-2372
(858) 240-2299 FAX

Richard M. Ness and Ness Engineering, Inc.
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