Polymer / filler family, not a unique commercial grade. The cited named product is an example only.
Specific property examples
What distinguishes this material
POM-C is a copolymer identity; it is not Delrin POM-H. Use the exact stock-shape grade when comparing absorption, porosity or dimensional behavior.
Designation in this reference
POM-C
Forms covered by the sources
Stock-shape rod / plate; confirm supplier process and dimensions
States to distinguish or confirm
Exact compound, color and additives recorded
Extruded / molded route and stress relief recorded
Temperature and exposure
Melting point, glass-transition temperature, heat-deflection test and long-term service rating are different quantities. Use a grade-specific value with its load, duration and test conditions.
Other search names in these sources
acetal copolymer · polyoxymethylene copolymer
Read the scope above: a source’s related product name is not a blanket interchangeability statement.
Property evidence for a stated condition
Read the complete example before using a number. Typical values are not guaranteed limits. Missing test conditions remain visible.
Specific source example
Ensinger TECAFORM AH natural: immersion test
Product / specimen
POM-C stock-shape test sample; consult linked datasheet for reference dimensions
Condition
Unfilled natural POM-C; specific stock-shape product, not a generic copolymer value
Test temperature / environment
23 °C
Values apply to the example above
Property
Value
Meaning and method
Water absorption, 24 h
0.05 mass %
manufacturer typical; not an acceptance limit DIN EN ISO 62; reference-sample test
Water absorption, 96 h
0.1 mass %
manufacturer typical; not an acceptance limit DIN EN ISO 62; reference-sample test
Which manufacturer, exact grade, filler fraction and stock form are specified?
What moisture conditioning, direction, test method and service temperature apply?
For machining, take the exact grade, supplied condition and measured hardness where applicable into the tool maker’s application data. A generic material-family speed is not a substitute for an operation and tool-specific recommendation.
Source identity, a named product example and a supplied-batch certificate are different evidence. Cross-standard similarity does not approve substitution.
Corrections from the previous article
Replace the old universal 66 MPa / 0.22% property set with a named product example.
Remove the POM-C/POM-H winner table assembled from unlike product conditions.