Mechanical Performance | ASTM Procedure | Random Grade | Unidirection Grade | ||||||
GMT40 | GMT30 | GMT20 | GMT50U | GMT40U | |||||
GF content | D2584 | 40 | 30 | 20 | 50 | 40 | |||
Specific Gravity | C792 | 1.2 | 1.1 | 1.02 | 1.3 | 1.2 | |||
Tensile Strength psi(Mpa) | D638 | 13000 (88) | 10000 (69) | 7700 (53) | 36000/7100 (245/49) | 28000/7100 (196/49) | |||
Flexural Strength psi(Mpa) | D790 | 23000 (157) | 20000 (137) | 17000 (118) | 36000/20000 (245/137) | 32000/16000 (216/108) | |||
Flexural Modulus psi(Mpa) | D790 | 810,000 (5589) | 630,000 (4315) | 500,000 (3432) | 1,280,000/710,000 (8825/4903) | 1,140,000/710,000 (7845/4903) | |||
Impack Strength ft-lb/in (J/m) | D256 | 16.6 (883) | 12.9 (686) | 8.3 (441) | 31.4/9.2 (1667/490) | 25.8/9.2 (1373/490) | |||
Heat Deflection Temperature ℉(℃) | D648 | 320 (160) | 302 (150) | 293 (145) | 320/266 (160/130) | 311/- (155/-) | |||
Coeificient of Thermal Expansion in/in/ ℉-10^-5 (cm/cm/℃-10^-5) | D696 | 4.48 (2.49) | 7.34 (4.08) | 10.21 (5.67) | 2.52/- (1.40/-) | - |