DELRIN® 500AF Blend

POM H with ptfe

Delrin® 500AF brown is very similar to Delrin® 100AF (both resins made by DuPont) in that this material performs exceedingly well in bearing or low friction applications that also require good strength and dimensional stability characteristics. Containing PTFE fibers, this modified acetal homopolymer material has a slightly more crystaline structure than Delrin® 100AF, so therefore exhibits slightly higher strength and modulus, as well as improved machining characteristics. It is designed for applications requiring low wear and, or low friction against steel, itself or other plastics. It is perfect for plastic bushing or bearing applications requiring a low coefficient of friction.  Delrin® is a registered trademark of DuPont.


Chemical designation
POM-H (Polyacetal (Homopolymer))
1,5 g/cm3

Main Features

  • excellent wear properties
  • low static friction
  • high mechanical load capacity
  • good machinability

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitConditionTest Method
    Tensile strength at yield7200psiASTM D 638
    Elongation at yield4%ASTM D 638
    Modulus of elasticity
    (tensile test)
    475,000psiASTM D 638
    Impact strength (Izod)0.8ftlbsinASTM D 256
    Rockwell hardness87-M ScaleASTM D 785
    Flexural strength13,000psiASTM D 790
    Modulus of elasticity
    (flexural test)
    495,000psiASTM D 790
    Compression strength1500psi1% strainASTM D 695
    Compression strength14,000psi10% strainASTM D 695
    Compression modulus200,000psiASTM D 695
  • Thermal properties
    Thermal propertiesValueUnitConditionTest Method
    Melting temperature347F-
    Service temperature300FIntermittent-
    Service temperature185FLong Term-
  • Other properties
    Other propertiesValueUnitConditionTest Method
    Moisture absorption0.18%@ 24 hrs, 73 °FASTM D 570

Stock program