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MIL-PRF-46187 Prepreg, Unidirectional Tape, Carbon \(Graphite\) Fiber High Temperature Resin Impregnated, 316 Deg. C \(600 Deg. F\)This specification establishes the requirements for carbon fiber/high temperature resin prepreg in the form of unidirectional tape suitable for the fabrication of structural laminates intended for use at temperatures up to and including 316 Deg. C \(600 Deg. F\) \(see 6.1\).

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MIL-PRF-46187A
TABLE II.
Laminate mechanical properties (SI units).
_________________________________________________________________________________
Minimum Requirements
Test
Test
Test Direction
Method
0°
90°
Temperature
_________________________________________________________________________________
Tensile strength
RT
1275
23.4
ASTM D3039
290°C
ultimate, MPa
1275
11.0
_________________________________________________________________________________
Tensile modulus,
RT
120
7.6
ASTM D3039
290°C
GPa
120
5.7
_________________________________________________________________________________
Compressive strength
RT
1035
127.6
ASTM D3410
290°C
ultimate, MPa
585
82.7
or
ASTM D695
_________________________________________________________________________________
Compressive modulus,
RT
125
7.10
ASTM D3410
290°C
GPa
125
6.34
or
ASTM D695
_________________________________________________________________________________
Compressive strength
RT
930
ASTM D3410
290°C
Aged 100 hours at
540
or
316°C, MPa
ASTM D695
_________________________________________________________________________________
Flexural strength,
RT
1620
ASTM D790
260°C
MPa
1082
316°C
1082
_________________________________________________________________________________
Flexural modulus,
RT
110
ASTM D790
260°C
GPa
110
316°C
110
_________________________________________________________________________________
Short beam shear
RT
129
ASTM D2344
260°C
strength, MPa
75
316°C
54
____________________________________________________________________________________________
9



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