Mechanical Properties 

360

380

384

413

ZA 12

ZA 27

 

Ultimate Tensile Strength (ksi)

 

44

 

46

 

48

 

43

 

57

 

59

 

Yield Strength (ksi)

 

25

 

23

 

24

 

21

 

45

 

52

 

Elongation (% in 2 in.)

 

2.5

 

3.5

 

2.5

 

2.5

 

2.5

 

2.0

 

Hardness (BHN)

 

75

 

80

 

85

 

80

 

95

 

116

 

Shear Strength (ksi)

 

28

 

28

 

29

 

25

 

43

 

47

 

Fatigue Strength (ksi)

 

20

 

20

 

20

 

19

 

21

 

Density (lb/in3)

 

0.095

 

0.099

 

0.102

 

0.096

 

0.218

 

0.181

 

Melting Range (oF)

 

1035-1105º

 

1000-1100º

 

960-1080º

 

1065-1080º

 

710-810º

 

708-903º

 

Specific Heat (BTU/lboF)

 

0.230

 

0.230

 

0.230

 

0.230

 

0.107

 

0.125

Coefficient of Thermal Expansion
(in./in./oF x 10-6)
 

11.6

 

12.2

 

11.6

 

11.3

 

13.4

 

14.4

 

Thermal Conductivity (BTU/ft hr oF)

 

65.3

 

55.6

 

70.1

 

67.1

 

72.5

 

Electrical Conductivity (% IACS)

 

30

 

27

 

31

 

28

 

30

 

Source: ASTM Standard B85-92a; B86; B791
Last Updated on 2/1/2001
By Robert Cox