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PRODUCTS LIST & TECHNICAL DATA
UHMW-1900 (Ultra High Molecular Weight Polyethylene)
| Properties | A.S.T.M | UHMW-1900 |
| Specific Gravity | D792 | .940 .942 |
| Specific Volume, cu.in. per lb. | D792 | 29.8 |
| Refractive Index, nD | D542 | - |
| Tensile Strength (at yield) p.s.i | D638,D651 | 2,500 |
| Elongation % | D638 | 5.25 |
| Modulus of Elasticity in Tension , 105 p.s.i | D747 | 1.02 |
| Compressive Strengt, p.s.i | D695 | - |
| Flexural Strength, p.s.i | D790 | - |
| Impact Strength, ft-lb per in. of notch(1/2x1/2 in. notched bar, Izod test) | D256 | NO BREAK |
| Hardness , Rockwell | D785 | R38 |
| Thermal Conductivity (see footnote !) | C177 | - |
| Specific Heat, cal per Cel. per gm. | ---- | |
| Thermal Expansion, 103 per o Cel. | D696 | 7.2 |
| Resistance to heat, F (continous) | ---- | - |
| Heat Distortion Temp oF | D648 | 163 |
| Volume Resistivity (see footnote 2) | D257 | 10 |
| Dielectric Strength (see footnote 3) | D149 | 710 |
| Dielectric Constant, 60 cycles | D150 | - |
| Dielectric Constant 103 cycles | D150 | - |
| Dielectric Constant 106 cycles | D150 | 2.30 |
| Dissipation (power) factor, 60 cycles | D150 | - |
| Dissipation (power) factor, 103 cycles | D150 | - |
| Dissipation (power) factor, 106 cycles | D150 | 0.0002 |
| Arc Resistance, sec. | D495 | - |
| Water absorbtion , 24Hr, 1/8"thick , % | D570 | 0.01 |
| Burning Rate | D635 | Very Slow |
| Effect of Sunlight | - | - |
| Effect of Weak Acids | D543 | Very Resistant |
| Effect of Strong Acids | D543 | - |
| Effect of Weak Alkalies | D543 | - |
| Effect of Strong Alkalies | D543 | - |
| Effect of Orgain Solvents | D543 | -l |
| Clarity | - | Translucent to Opaque |
Footnotes
1. 104 cal. per sec. per sq. cm., per 1 degree C per cm.
2. ohm-cm (50% relative humidity and 23o C
3. short-time, 1/8-in. thickness, volts per mil.
4. step-by-step , 1/8-in. thickness, volts per mil.
MILITARY SPECIFICATIONS
MIL-P-22748A
PRODUCTS LIST & TECHNICAL DATA
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