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Rulon Bearings

Celanese Hostaform® MT8F01 POM, Medical Technology
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)

Material Notes: Hostaform« acetal copolymer grade MT8F01 is a special grade developed for medical industry applications containing low residual monomers. Hostaform« MT8F01 is a standard flow low level polytetraflouroethylene filled (PTFE) product designed for use in wear applications against plastics, metal, glass or ceramic mating surfaces where silicone lubricants can not be tolerated.

Information provided by Celanese

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Physical PropertiesMetricEnglishComments
Density 1.44 g/cc0.0520 lb/in³ISO 1183
Melt Flow 8.5 g/10 min
@Load 2.16 kg,
Temperature 190 °C
8.5 g/10 min
@Load 4.76 lb,
Temperature 374 °F
[cm3/10min]; ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield 58.0 MPa8410 psi50mm/min; ISO 527-2/1A
Elongation at Break 28 %28 %
Elongation at Yield 9.0 %9.0 %50mm/min; ISO 527-2/1A
Tensile Modulus 2.60 GPa377 ksi50mm/min; ISO 527-2/1A
Charpy Impact, Notched 0.520 J/cm²2.47 ft-lb/in²ISO 179/1eA
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 120 µm/m-°C66.7 µin/in-°FISO 11359-2
CTE, linear, Transverse to Flow 120 µm/m-°C66.7 µin/in-°FISO 11359-2
Melting Point 166 °C331 °F10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi) 102 °C216 °FISO 75-1, -2
 
Processing PropertiesMetricEnglishComments
Processing Temperature 77.0 - 93.0 °C171 - 199 °Fcavity
Zone 1 <= 176 °C<= 349 °F
Zone 2 <= 182 °C<= 360 °F
Zone 3 <= 188 °C<= 370 °F
Zone 4 <= 193 °C<= 379 °F
Die Temperature <= 198 °C<= 388 °F
Melt Temperature 182 - 199 °C360 - 390 °F
Drying Temperature 80.0 - 100 °C176 - 212 °F
Dry Time 3.00 hour3.00 hour
Injection Pressure 60.0 - 120 MPa8700 - 17400 psi
Hold Pressure 60.0 - 120 MPa8700 - 17400 psi
Back Pressure <= 2.00 MPa<= 290 psi
 
Descriptive Properties
Injection moldingYes
Processing conditions acc. ISO9988-2

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