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Rulon Bearings

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Celanese Crastin® CE15315 BK010 PBT-GF15FR(17)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Glass Fiber Filled, Flame Retardant

Material Notes: 15% Glass Reinforced, Flame Retardant, Polybutylene Terephthalate

Former DuPont product acquired by Celanese in 2022.

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Physical PropertiesOriginal ValueComments
Density 1.49 g/ccISO 1183
Linear Mold Shrinkage, Flow 0.0070 cm/cmISO 294-4, 2577
Linear Mold Shrinkage, Transverse 0.010 cm/cmISO 294-4, 2577
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength at Break 91.0 MPaISO 527-1/-2
Elongation at Break 2.8 %ISO 527-1/-2
Tensile Modulus 5700 MPaISO 527-1/-2
Poissons Ratio 0.35
Charpy Impact Unnotched 21.5 kJ/m²
@Temperature -30.0 °C
ISO 179/1eU
 23.1 kJ/m²
@Temperature 23.0 °C
ISO 179/1eU
Charpy Impact, Notched 5.00 kJ/m²
@Temperature -30.0 °C
ISO 179/1eA
 5.10 kJ/m²
@Temperature 23.0 °C
ISO 179/1eA
 
Thermal PropertiesOriginal ValueComments
Melting Point 223 °C10°C/min; ISO 11357-1/-3
Deflection Temperature at 1.8 MPa (264 psi) 195 °CISO 75-1/-2
Glass Transition Temp, Tg 55.0 °C10°C/min; ISO 11357-1/-2
Flammability, UL94 V-0
@Thickness 0.710 mm
IEC 60695-11-10
 V-0
@Thickness 1.50 mm
IEC 60695-11-10
 
Processing PropertiesOriginal ValueComments
Melt Temperature >= 240 °CRange, Injection
 250 °COptimum, Injection
Mold Temperature 80.0 °COptimum, Injection
 30.0 - 130 °CInjection
Ejection Temperature 170 °CInjection
Drying Temperature 120 °CInjection
Dry Time 2.00 - 4.00 hourInjection, Dehumidified Dryer
Moisture Content <= 0.040 %Injection
Hold Pressure >= 60.0 MPaInjection
 
Descriptive Properties
AdditivesFlame retardant
Back pressureAs low as possible
Drying RecommendedyesInjection
FMVSS ClassDNIISO 3795 (FMVSS 302)
Part Marking Code>PBT-GF15FR(17)<ISO 11469
PolymerPBT-GF15 FR(17)
Processing Hold Pressure Time (s/mm)3Injection
Regional AvailabilityAsia Pacific
 North America
 South and Central America
Resin IdentificationPBT-GF15FR(17)ISO 1043

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