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Conductivity/Hardness Table
 
* Rockwell B scale unless otherwise noted
a ASM Guide to Engineered Materials 12/2000
b Boeing BAC 5946
1 value for thickness greater than 0.040" (1 mm)
2 value for thickness greater than 0.060" (1.5 mm)

Alloy

Temper

Electrical
Conductivity
20C. (68F)
% IACS

Hardness
Rockwell
HRB *

Comment

1060

0

62

19 HB

a

H18

61

35 HB

a

1100

0

59

23 HB

a

H18

57

44 HB

a

1350

All

62

--

a

2004

T62

38 - 42

55 - 75

b1

2011

T3

30

95 HB

a

T8

45

100 HB

a

2014

0

48.5 - 51

<61 HRE

b2

T3XX

31.5 - 35

68 - 80

b1

T4XXX

31.5 - 35

68 - 80

b1

T6XXX

35 - 40

78.5 - 89.5

b1

2017

0

48.5 - 51.0

<51 HRE

b2

T4XXX

31.5 - 35

68 - 80

b1

T61

40

120 HB

a

2018

T61

40

120 HB

a

2024

0

45.5 - 49.0

<63 HRE

b2

T3XXX

28.5 - 32.0

63 - 83.5

b1

T4X

28.5 - 32.0

63 - 83.5

b1

T6X

36 - 40

72 - 86

b1

T8XXX

38 - 42

74 - 86

b1

T6,T81,T861

38

130 HB

a

2025

T6

40

110 HB

a

2036

T4

41

--

a

2090

T3X

16.0 -18.5

34 - 49

b1

T83X

16.0 -18.5

80 - 90

b1

T86X

16.0 -18.5

80 - 90

b1

2117

T4

40

70 HB

a

2124

T8X

38 - 42

74 - 86

b1

2218

T72

40

95 HB

a

2219

0

44 - 49

<71 HRE

b2

T3XXX

26 - 31

>64.5

b1

T37

27 - 31

>65.5

b1

T4X

28 - 32

>61

b1

T6X

32 - 35

>65.5

b1

T8XXX

31 - 35

>73

b1

T87

31 - 35

>77

b1

2224

T3511

29.5 - 33.5

70 - 83.5

b1

2324

T39

29 - 32

77 - 86

b1

2618

T61

37

115 HB

a

3003

0

44.5 - 50.5

<66 HRH

b1

H12

42

35 HB

a

H14

41

40 HB

a

H18

40

55 HB

a

3004

All

42

45 HB

a

3105

All

45

--

a

4032

0

40

--

a

T6

35

120 HB

a

4043

0

42

--

a

4045

All

45

--

a

4343

All

42

--

a

5005

All

52

--

a

5050

All

50

--

a

5052

0

34 - 37

<70 HRE

b2

H34

34 - 37

>66 HRE

b1

5056

0

29

65 HB

a

H38

27

100 HB

a

5083

0

--

<76 HRE

b2

HXX

--

>80 HRE

b1

5086

All

31

--

a

5154

0

<51 HRE

b2

HXX

32

55 - 80 HRE

b1

5254

All

32

--

a

5356

0

29

--

a

5454

0

34

62 HB

a

H38

34

--

a

5456

0

29

--

a

5457

All

46

--

a

5652

All

35

--

a

5657

All

54

--

a

6005

T1

47

--

a

T5

49

--

a

6013

T4X

37 - 40

41 - 60

b1

T6X

41 - 44

64 - 79

b1

6053

0

45

--

a

T4

40

--

a

T6

42

--

a

6061

0

47 - 56

<25 HRE

b2

T4XXX

36 - 45.5

>64 HRE

b1

T42

36 - 45.5

>60 HRE

b1

T6XXX

40 - 51

87 - 90 HRE

b1

6063

0

57 - 65

<71 HRH

b2

T1X

48 - 58

>37 HRE

b1

T4X

48 - 58

>40 HRE

b1

T5X

50 - 60

>44 HRE

b1

T6X

50 -60

>70 HRE

b1

6066

0

40

43 HB

a

T6

37

120 HB

a

6070

T6

44

--

a

6101

T6

57

71 HB

a

T61

59

--

a

T63

58

--

a

T64

60

--

a

T65

58

--

a

6105

T1

46

--

a

T5

50

--

a

6151

0

54

--

a

T4

42

--

a

T6

45

--

a

6201

T81

54

--

a

6253

-

-

--

a

6262

T9

44

--

a

6351

T6

46

95 HB

a

6463

T1

50

42 HB

a

T5

55

60 HB

a

T6

53

74 HB

a

--

a

6951

0

56

--

a

T6

52

--

a

7049

0

44 - 50

<71 HRE

b2

T73XXX

40 - 44

>82

b1

T76XXX

38 - 44

>86

b1

7050

0

44 - 50

<71 HRE

b2

T735XX

41 - 44

82 - 92

b1

T74XX

40 - 44

82 - 92

b1

T76XXX

39 - 44

84 - 94

b1

7055

T7751

35.5 - 38

90.5 - 98

b1

T77511

35.5 - 38

91.5 - 98

b1

7072

0

59

--

a

7075

0

44 - 47.5

<66 HRE

b2

T6XXX

30 - 35

83.5 - 94

b1

T73XX

38 - 42

79.5 - 89

b1

T73511

38 - 42

78.5 - 89

b1

T76XXX

38 - 42

82 - 91

b1

7079

T6XX

30 - 33.5

84 - 94

b1

7150

T651

34 - 39.5

90 - 98

b1

T6511

32 - 37.5

90 - 98

b1

T77511

35.5 - 39

90 - 98

b1

7178

T6

31

--

a

8017

H12,H22

59

--

a

H212

61

--

a

8030

H221

61

--

a