Engineering 185°F - 300°F | Acetal

DELRIN® acetal homopolymer

Ensinger's Delrin® 150 stock shapes are a homopolymer acetal manufactured using DuPont Delrin 150 Resin. It is a crystalline plastic which offers an excellent balance of properties to bridge the gap between metals and plastics. It possesses high tensile and flexural properties, along with creep resistance and toughness, while exhibiting low moisture absorption, and fatigue endurance.

Properties Metric English Comments
Physical Specific Gravity 1.42 g/cc 1.42 g/cc ASTM D792
Water Absorption 0.250 %
@Time 24.0 hour
0.250 %
@Time 24.0 hour
ASTM D570
Water Absorption at Saturation 0.900 % 0.900 % ASTM D570
Mechanical Hardness, Rockwell M 94.0 94.0 ASTM D785
Hardness, Rockwell R 120 120 ASTM D785
Tensile Strength, Yield 75.8 MPa 11000 psi ASTM D638
Elongation at Break 25.0 % 25.0 % ASTM D638
Tensile Modulus 3.10 GPa 450 ksi ASTM D638
Flexural Modulus 2.90 GPa 420 ksi ASTM D790
Flexural Strength 110 MPa 16000 psi ASTM D790
Compressive Strength 35.9 MPa 5200 psi ASTM D695
Izod Impact, Unnotched 0.80 J/cm 1.5 ft-lb/in ASTM D256
Coefficient of Friction, Dynamic 0.200 0.200 40 psi, 50 fpm; ASTM D3702
K (wear) Factor 111 x 10-8 mm/N-M 55.0 x 10-10 in-min/ft-lb-hr ASTM D3702
Limiting Pressure Velocity 0.0513 MPa-m/sec 1460 psi-ft/min ASTM D792
Electrical Volume Resistivity 1.00e+15 ohm-cm 1.00e+15 ohm-cm ASTM D257
Dielectric Constant 3.70
@Frequency 60.0 Hz
3.70
@Frequency 60.0 Hz
50% RH; ASTM D150
Dielectric Strength 19.7 kV/mm 500 kV/in ASTM D149
Dissipation Factor 0.00500
@Frequency 60.0 Hz
0.00500
@Frequency 60.0 Hz
ASTM D150
Thermal CTE, linear 122 µ m/m-°C 68.0 µ in/in-°F ASTM D696
Melting Point 175 °C 347 °F ASTM D2133
Maximum Service Temperature, Air 85.0 °C 185 °F Continuous; UL746B
149°C 300°F Intermittent
Deflection Temperature at 0.46 MPa (66 psi) 169 °C 336 °F ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 125 °C 257 °F ASTM D648
Flammability, UL94 HB HB UL 94