DELRIN® 150 Series Natural

POM-H natural

Delrin® 150 is a homopolymer acetal that is manufactured by Ensinger (using DuPont™ Delrin® resin) and sold under the trade name TECAFORM AD natural. This homopolymer acetal has exceptional sliding characteristics and good wear resistance properties. In comparison to POM-C, POM-H has a slightly higher density, hardness and strength due to its higher crystallinity. In addition, POM-H has good electrical insulating properties, as well as exceptional machining characteristics, making Ensinger's extruded Delrin® 150 natural acetal one of the most versatile engineering materials available today. Delrin® is registered trademark of DuPont.


Chemical designation
POM-H (Polyacetal (Homopolymer))
Alternative colors available
1,41 g/cm3

Main Features

  • good machinability
  • high stiffness
  • high fatigue strength
  • high creep resistance
  • good wear properties
  • very good abrasion resistance

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitConditionTest Method
    Rockwell hardness94 (120)-@ 73 °FASTM D 785
    Modulus of elasticity
    (tensile test)
    350,000psi@ 73 °FASTM D 638
    Coefficient of friction.2lbs/in^2DynamicASTM D 3702
    Wear rate55*10-10in3minftlbshr40 psi, 50 fpmASTM D 3702
    Elongation at break (tensile test)25%@ 73 °FASTM D 638
    Compression strength3,600psi@ 1% strainASTM D 695
    Impact strength (Izod)1.5ftlbsin@ 73 °F-
    Modulus of elasticity
    (flexural test)
    470,000psi@ 73 °FASTM D 790
    Flexural strength14,000psi@ 73 °FASTM D 790
    Tensile strength at yield11,000psiASTM D 638
    Compression strength15,500psi@ 10% strainASTM D 695
    Compression modulus325,000psiASTM D 695
  • Thermal properties
    Thermal propertiesValueUnitConditionTest Method
    Specific heat0.35butlbf-
    Melting temperature347FASTM D 2133
    Service temperature300FIntermittent-
    Deflection temperature336F@ 66 psiASTM D 648
    Thermal expansion (CLTE)6.8*10-5ininFASTM D 696
    Deflection temperature257F@264 psiASTM D 648
    Service temperature185FLong Term-
  • Electrical properties
    Electrical propertiesValueUnitConditionTest Method
    Volume resistivity1015O*cmASTM D257
    Dielectric strength500V/milASTM D 149
    Dielectric constant3.7-@ 60 Hz, 73 °F, 50% RHASTM D 150
    Dissipation factor.005-@ 60 Hz, 73 °FASTM D 150
  • Other properties
    Other propertiesValueUnitConditionTest Method
    Flammability (UL94)HB-UL 94-
    Moisture absorption.25%@ 24 hrs, 73 °FASTM D 570
    Moisture absorption.90%@ saturation, 73 °FASTM D 570

Stock program