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TECAFORM AD black

POM-H black

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POM-H black is a homopolymer acetal material that is manufactured by Ensinger (using black DuPont™ Delrin® resin) under the tradename TECAFORM AD black. With regard to the properties of POM-H black, the material exibits a high melting point and high strength, but is sensitive to hydrolysis with continuous exposure to hot water over 60°C and steam. Black Delrin, like all other POM-H materials, holds a slightly higher density, hardness and strength than POM-C. Furthermore, POM-H black has excellent wear resistance and good sliding properties, as well as an outstanding machining ability, thus, making POM-H black an extremely adaptable engineering material.

Compliances

Facts

Chemical designation
POM-H (Polyacetal (Homopolymer))
Colour
black
Alternative colours available
white
Density
1.43 g/cm3

Main Features

  • high strength
  • difficult to bond
  • good slide and wear properties
  • good machinability
  • not hot water resistant over 60°C
  • good chemical resistance
  • easy to polish

Target industries

mechanical engineering
aircraft and aerospace technology
oil and gas industry
electronics
automotive industry

Downloads

Datasheet (PDF)
Product handling (PDF)

Technical details

  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Parameter Norm
    Modulus of elasticity
    (tensile test)    		 3600 MPa 1mm/min DIN EN ISO 527-2
    Tensile strength 80 MPa 50mm/min DIN EN ISO 527-2
    Tensile strength at yield 80 MPa 50mm/min DIN EN ISO 527-2
    Elongation at yield (tensile test) 32 % 50mm/min DIN EN ISO 527-2
    Elongation at break (tensile test) 43 % 50mm/min DIN EN ISO 527-2
    Flexural strength 106 MPa 2mm/min, 10 N DIN EN ISO 178
    Modulus of elasticity
    (flexural test)    		 3600 MPa 2mm/min, 10 N DIN EN ISO 178
    Compression modulus 2800 MPa 5mm/min, 10 N EN ISO 604
    Compression strength 22/38/72 MPa 1% / 2% / 5% EN ISO 604
    Impact strength (Charpy) n.b. kJ/m2 max. 7,5J DIN EN ISO 179-1eU
    Notched impact strength (Charpy) 14 kJ/m2 max. 7,5J DIN EN ISO 179-1eA
    Shore hardness 83 D DIN EN ISO 868
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Parameter Norm
    Glass transition temperature -60 C DIN EN ISO 11357
    Melting temperature 182 C DIN EN ISO 11357
    Thermal conductivity 0.43 W/(k*m) ISO 22007-4:2008
    Specific heat 1.3 J/(g*K) ISO 22007-4:2008
    Service temperature 150 C short term NN
    Service temperature 110 C long term NN
    Thermal expansion (CLTE) 11 10-5*1/K 23-60°C, long. DIN EN ISO 11359-1;2
    Thermal expansion (CLTE) 11 10-5*1/K 23-100°C, long. DIN EN ISO 11359-1;2
  • product-technical-detail-collapse-item-2-lvl-1
    Electrical properties Value Unit Parameter Norm
    surface resistivity 1014 Ω Silver electrode, 23°C, 12% r.h. -
    volume resistivity 1014 Ω*cm Silver electrode, 23°C, 12% r.h. -
    Dielectric strength 38 kV/mm 23°C, 50% r.h. ISO 60243-1
    Resistance to tracking (CTI) 600 V Platin electrode, 23°C, 50% r.h., solvent A DIN EN 60112
  • product-technical-detail-collapse-item-3-lvl-1
    Other properties Value Unit Parameter Norm
    Resistance to hot water/ bases - -
    Flammability (UL94) HB - corresponding to DIN IEC 60695-11-10;
    Resistance to weathering - -
    Water absorption 0.05 / 0.1 % 24h / 96h (23°C) DIN EN ISO 62

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