TECAFORM® AH natural

POM-C unfilled

TECAFORM AH natural acetal is an unfilled POM-C with a unique balance of physical properties not available in most other thermoplastics. This copolymer acetal is an engineering plastic made for wide-ranging universal applications in many different industries. The key performance characteristics of unmodified POM copolymer include high mechanical strength and rigidity, excellent wear, low moisture absorption and excellent dimensional stability. Unfilled POM-C copolymer is manufactured by Ensinger under the tradename TECAFORM AH natural, and offers high crystallinity and a good degree of toughness (even in the lower temperature range), combined with good chemical resistance.

Compliances

Facts

Chemical designation
POM-C (Polyacetal (Copolymer))
Color
white
Alternative colors available
white
Density
1,41 g/cm3

Main Features

  • good wear properties
  • low water absorption
  • good chemical resistance
  • easy to machine
  • high dimensional stability

Target industries

Technical details


  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Condition Test Method
    Tensile strength at yield 9,300 psi @ 73 °F ASTM D 638
    Modulus of elasticity
    (tensile test)
    330,000 psi @ 73 °F ASTM D 638
    Elongation at break (tensile test) 40 % @ 73 °F ASTM D 638
    Modulus of elasticity
    (flexural test)
    400,000 psi @ 73 °F ASTM D 790
    Flexural strength 13,000 psi @ 73 °F ASTM D 790
    Compression strength 4,500 F @ 73 °F, 5 % strain ASTM D 695
    Impact strength (Izod) 1.0 ftlbsin @ 73 °F -
    Rockwell hardness 86 - @ 73 °F ASTM D 785
    Wear (K) factor 65 x 10-10 in3minftlbshr 40 psi, 50 fpm ASTM D 3702
    Coefficient of friction .21 lbs/in^2 Dynamic ASTM D 3702
    Tensile strength at break 9,700 psi @ 73 °F ASTM D 638
    Elongation at yield (tensile test) 9 % @ 73 °F ASTM D 638
    Compression modulus 250,000 psi @ 73°F ASTM D 695
    Compression strength 2,500 psi @ 73 °F, 1% strain ASTM D 695
    Compression strength 12,000 psi @ 73 °F, 10% strain ASTM D 695
    Rockwell hardness 120 - @ 73 °F, R scale ASTM D 785
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Condition Test Method
    Deflection temperature 316 F @ 66 psi ASTM D 648
    Deflection temperature 230 F @264 psi ASTM D 648
    Service temperature 285 F Intermittent -
    Service temperature 195 F Long Term -
    Melting temperature 329 F -
    Thermal expansion (CLTE) 4.7*10-5 ininF ASTM D 696
  • product-technical-detail-collapse-item-2-lvl-1
    Electrical properties Value Unit Condition Test Method
    Volume resistivity 1.0 x 1014 O*cm ASTM D 257
    Dielectric strength 500 V/mil ASTM D 149
    Dielectric constant 3.7 % @ 60 Hz, 73 °F, 50% RH ASTM D 150
    Dissipation factor .001 % @ 60 Hz, 73 °F ASTM D 150
  • product-technical-detail-collapse-item-3-lvl-1
    Other properties Value Unit Condition Test Method
    Flammability (UL94) HB % UL 94 -
    Moisture absorption 0.18 % @ 24 hrs, 73 °F ASTM D 570
    Moisture absorption .80 % @ saturation, 73 °F ASTM D 570

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