Material: Tecamid™ MDS
(Molybdenum Disulfide Filled) Nylon
Nylon is one of the most widely used and versatile thermoplastic resins. Its combination of physical propverties versus its price makes it a favorite choice for
numerous applications. Nylon has a consistent history of replacing other material including: metal, brass, bronze, aluminum, and rubber. In replacing metal
gears in machinery, nylon can be advantageous because of its ability to reduce noise, use less lubrication and increase gear life. Tecamid™ MDS is an
extruded "moly" filled nylon 6/6, which is gray in color. The addition of particles of molybdenum disulfide enhances the surface lubricity and wear resistance
over unfilled nylon. In applications requiring high lubricity, this material may be a good candidate. In addition to the greater lubricity there are many additional
property enhancements that occur. Key characteristics for this material are low surface friction, increased surface hardness, increased heat resistance, higher
tensile properties and improved dimensional stability.
| Mechanical Properties |
Test Method ASTM |
Value |
Units |
|
|
|
|
| Density |
D792 |
0.0412 |
lbs/in3
|
| Specific Gravity |
D792 |
1.14 |
g/cc |
| Water Absorption @ 24 hours, 73°F |
D570 |
1.2 - 2.5 |
% |
| Water Absorption @ Saturation, 73°F |
D570 |
7.5 - 8.5 |
% |
| Tensile Strength, 73°F |
D638 |
11,000 |
psi |
| Tensile Modulus |
D639 |
450,000 |
psi |
| Elongation ( at break), 73°F |
D638 |
15 |
% |
| Flexural Strength, 73°F |
D790 |
17,000 |
psi |
| Flexural Modulus of Elasticity, 73°F |
D790 |
450,000 |
psi |
Compressive Strength |
D695 |
|
psi
|
| Izod Impact Strength, 73°F |
D256 |
1 |
ft-lb/in of notch
|
| Rockwell Hardness, 73°F |
D785 |
M - 87 |
M or R Scale |
| Shure Hardness |
|
|
D Scale
|
| Wear Factor Against Steel, 40 psi, 50 fpm |
D3702 |
1.9 X 10-10 |
in.3-min/ft.lbs.hr |
| Static Coefficient of Friction |
D3702 |
|
|
| Dynamic Coefficient of Friction, 40 pcs, 50 fpm |
D3702
|
|
|
|
|
|
|
| Thermal Properties |
|
|
|
|
|
|
|
|
|
| Heat Deflection Temperature @ 66 psi |
D648 |
470 |
°F |
| Heat Deflection Temperature @ 264 psi |
D648 |
194 |
°F |
| Coefficient of Linear Thermal Expansion |
D696 |
4.0 X 10-5 |
in/in./°F |
| Continuous Servicing Temperature, Intermittent |
|
355 |
°F |
| Continuous Servicing Temperature, Long Term |
UL746B
|
230 |
°F |
| Specific Heat |
|
0.4 |
BTU/lb -°F |
| Thermal Conductivity |
|
1.7 |
|
| Melting Point |
D2133
|
491 |
°F |
| Flammability |
UL94
|
HB |
(mm) |
|
|
|
|
| Electrical Properties |
|
|
|
|
|
|
|
|
|
| Surface Resistivity |
D257 |
|
ohm/square |
| Volume Resistivity |
D257 |
1015 |
ohm - cm |
| Dielectric Strength |
D149 |
30 |
Volts/mil |
| Dielectric Constant, 60 Hz, 73°F, 50% RH |
D150
|
2.5 |
|
| Dissipation Factor, 60 HZ, 73°F |
D150 |
|
|
|
|
|
|
| *The values shown in these and the following charts are typical,
average properties. Actual values may differ due to variations
in resin formulations and processing methods. These values are
obtained from sources believed to be reliable, including the
resin manufactures, converters and other published sources.
However, they should not be used for specification or design
purposes. |
