TECAFORM® AH black

POM-C black

In addition to TECAFORM AH natural (POM-C), which is white in color, a black acetal version is also readily available from stock; TECAFORM AH black. ​POM-C black is a copolymer acetal material manufactured by Ensinger under the tradename TECAFORM AH black in standard stock shapes for machining, and is extruded in sheet, rod and tube​​. This POM black material exhibits good chemical resistance, high strength, rigidity and hardness as well good sliding and wear properties. In addition, this black acetal can also be suitable for direct contact with food, and has improved UV protection for outdoor use.

Facts

Chemical designation
POM-C (Polyacetal (Copolymer))
Color
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
    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 psi @ 73 °F, 5 % strain ASTM D 695
    Modulus of elasticity
    (tensile test)
    330,000 psi @ 73 °F ASTM D 638
    Tensile strength at yield 9,300 psi @ 73 °F ASTM D 638
    Coefficient of friction .21 lbs/in^2 Dynamic ASTM D 3702
    Wear rate 65 x 10-10 in3minftlbshr 40 psi, 50 fpm ASTM D 3702
    Rockwell hardness 86 - @ 73 °F ASTM D 785
    Impact strength (Izod) 1.0 ftlbsin @ 73 °F -
    Compression strength 2,500 psi @ 73 °F, 1% strain ASTM D 695
    Elongation at yield (tensile test) 9 % @ 73 °F ASTM D 638
    Compression modulus 250,000 psi @ 73°F 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
    Service temperature 285 F Intermittent -
    Service temperature 195 F Long Term -
    Melting temperature 329 F -
    Deflection temperature 316 F @ 66 psi ASTM D 648
    Deflection temperature 230 F @264 psi ASTM D 648
    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
    Dielectric constant 3.7 % @ 60 Hz, 73 °F, 50% RH ASTM D 150
    Dissipation factor .001 % @ 60 Hz, 73 °F ASTM D 150
    Dielectric strength 500 V/mil ASTM D 149
    Volume resistivity 1.0 x 1014 O*cm ASTM D 257
  • 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

Stock program