| Home • Meldin® 7211 15% Graphite + 10% PTFE
|
Links:
Meldin 7211 ISO Rods Data
Meldin 7000 Series Overview
Meldin 7000 Design Guide
Meldin Machining Guidelines
Other Grades of Meldin
Meldin 7001
Meldin 7021
Meldin 7022
Meldin 7003
|
|
Meldin® 7211 15% Graphite + 10% PTFE
MELDIN® 7211, 15% by weight graphite and 10% by weight PTFE fillers (comparable to Vespel SP-211)
MELDIN® 7211 is 15% by weight graphite and 10% by weight PTFE fillers. It has the lowest coefficient of friction of all the MELDIN® 7000 grades. However, above 300°F, we typically use MELDIN® 7021, which has a very similar coefficient of friction to 7211 at temperatures above 300°F, and the wear factor of 7021 is lower than 7211 at temperatures above 300°F.
Engineering Note: Wear and friction values change depending on the pressure, velocity, and surface finish & hardness of the mating surface material.
Here is some wear and friction data for Meldin 7211, based on the following test conditions:
P = 100 PSI * V = 100 feet per minute * CRS1144 counterface material, 14 Rc hardness, 21 microinch surface finish
Coefficient of friction = 0.27 - K factor (or wear factor) = 114 X 10E-10
|
 |
Standard 12" x 12" plates (44% more material than a 10" x 10" plate)
Excellent Replacement for Vespel SP-211® from DuPont
Specifications - Approvals:
Meets ASTM D6456-99 Type 2, Class 3
Meets AMS3644 Class 4
Meets Mil-R-46198 Type 2, Class 3 (superceeded)
Meets Honeywell MCS5016 Type 2, Class 3
|
|
