POM-CRodBlack
POM-C - 4.250" x 120 Black Rod
120 in Rod
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About This Product
POM-C Black Rod in Acetal Copolymer is supplied in a 4.25" diameter x 120" long size for precision-machined parts that demand reliable performance. This POM-C rod offers excellent dimensional stability, low moisture absorption, and low-friction wear characteristics, making it a strong choice for bushings, rollers, and other tight-tolerance components.
Specifications
Shape
Rod
Length
120 inOuter Diameter
4.25 inPrice
$510.39 / Each
In Stock
21010 availableAvailable at 11 locations
Ships same day if ordered by 2pm
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Quick Info
Typical Properties — POM-C - 4.250" x 120 Black Rod
Pom CGeneral
PropertyTest MethodUnitValue
DensityD792lb/in³ / g/cm³0.051 / 1.4
Water absorption (24 / 96 h immersion @ 73°F)ASTM D570mg / %20/37 / 0.24/0.45
Water absorption (Saturation in air @ 73°F, 50% RH)ASTM D570%0.20
Water absorption (Saturation in water @ 73°F)ASTM D570%0.85
Flammability rating (UL 94, 3 / 6 mm thickness)UL 94HB/HB
Mechanical
PropertyTest MethodUnitValue
Tensile strength (At yield / break)ASTM D638psi / MPa9,450 / 65
Tensile strain at breakASTM D638%30
Tensile modulusASTM D638psi / MPa450,000 / 3,100
Compressive stress (At 10% nominal strain)ASTM D695psi / MPa15,000 / 100
Izod impact (notched)ASTM D256ft·lb/in / J/m0.7 / 37
Rockwell hardnessASTM D785R115
Operating Environment
PropertyTest MethodUnitValue
Melting temperatureASTM D2133°F / °C330 / 165
Thermal conductivity (@ 73°F)ASTM C177Btu·in/ft²·h·°F / W/m·K2.1 / 0.3
Coefficient of thermal expansion (Avg. 73 – 140°F)ASTM D696μin/in/°F / μm/m/°C61 / 105
Coefficient of thermal expansion (Avg. 73 – 212°F)ASTM D696μin/in/°F / μm/m/°C69 / 120
Heat deflection temperature (264 psi (Method A))ASTM D648°F / °C220 / 100
Max service temperature (Short-term)°F / °C285 / 140
Max service temperature (Continuous (5,000 / 20,000 h))°F / °C240/210 / 115 / 98
Min service temperature°F / °C-50 / -45
Electrical
PropertyTest MethodUnitValue
Dielectric strengthASTM D149V/mil / kV/mm510 / 20
Volume resistivityASTM D257Ω·cm>10¹⁴
Surface resistivityASTM D257Ω>10¹³
Typical properties are provided for reference only. Values may vary based on processing conditions, form factor, and lot. Contact Ready Plastics for certified test data.