POM-CRodBlack
POM-C - 2.750" x 120 Black Rod
120 in Rod
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About This Product
POM-C Acetal Copolymer Black rod in 2.75" diameter x 120" long stock is a reliable choice for precision-machined parts that require low moisture absorption and excellent dimensional stability. This black acetal copolymer rod also offers low friction and good wear resistance, making it ideal for bushings, rollers, and other moving components.
Specifications
Shape
Rod
Length
120 inOuter Diameter
2.75 inPrice
$213.69 / 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 - 2.750" 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.