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Page Title:
Physical and mechanical properties |
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|  MIL-P-46183
(Industry association specifications and standards are generally available
for reference from libraries. They are also distributed among technical groups
and using Federal agencies.)
2.3 Order of precedence. In the event of a conflict between the text of
this specification and the references cited herein, the text of this
specification shall take precedence.
3.
REQUIREMENTS
3.1 Material. The material shall consist of PEEK thermoplastic granules,
pellets or powder, with or without fiber reinforcement.
3.2 Physical and mechanical properties. The properties of the PEEK
thermoplastic shall be as specified herein when tested in accordance with 4.3.
Mechanical properties are to be measured on specimens that have been injection
molded to net shape.
3.2.1 Nonreinforced PEEK (type I). The properties of the unpigmented, non-
reinforced PEEK thermoplastic shall be as specified in table I.
TABLE I.
Properties of nonreinforced PEEK (type I).1/
Property
Property Values
334oC (633oF)
Melting point (minimum)
l43oC (289oF)
Glass transition temperature (Tg), min
l.30 + 0.04
Specific gravity
Tensile strength 2/ (minimum)
(at 23oC)
90 MPa
(l3,000 psi)
(at 200oC)
20 MPa
(2,900 psi)
Elongation at break (minimum)
10%
Flexural modulus (minimum)
3400 MPa
(500,000 psi)
Heat deflection temperature (minimum)
149oC (300oF)
(at 1820 kPa)
Water absorption (maximum)
(24-h immersion)
0.2%
1/
Property values are expressed in SI units in accordance with ASTM E380.
2/
MPa x 145 = psi
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