PROPERTIES UNITS PR14 PR11 PR12 PR814
Density g/cm3 1.27 1.27 1.27 1.25
Ultimate Compressive
Strength
MPa
psi
300
43,500
280
40,600
280
40,600
230
33,350
Normal Working
Pressure
MPa
psi
75
10,875
70
10,150
70
10,150
60
8,700
Compressive Yield @
68.9 MPa
% 2.4 2.4 2.4 2.4
Impact Strength kl/m2 38 38 38 42
Tensile Strength MPa
psi
90
13,045
85
12,325
85
12,325
90
13,045
Shear Strength MPa
psi
90
13,045
80
11,600
90
13,045
90
13,045
Brinell Hardness HB 16 16 16 16
Moisture Absorption @200C
@800C
%

%
0.1

0.7
0.1

0.7
0.1

0.7
0.1

0.7
Thermal Expansion I
                         II
x10-6/0C
x10-6/0C
100
60
100
60
100
60
100
60
Coefficient of Friction
Dry
Wet
0.1-0.14
0.1-0.15
0.09-0.12
0.1-0.14
0.09-0.12
0.1-0.14
0.06-0.12
0.07-0.14
Maximum Continuous Temperature 0C 65 65 65 65
Maximum Intermittent Temperature 0C 120 120 120 120

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