Ryton® R-4

About
Ryton® R-4 and R-4-02 40% glass fiber reinforced polyphenylene sulfide compounds provide a good combination of mechanical and electrical properties with outstanding chemical resistance, even at elevated temperatures.&&

Product Description
SupplierSolvay
GenericPPS
Material StatusCommercial: Active
FeaturesGood Electrical Properties,Solvent resistance
AvailabilitysNorth America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.69g/cm³ASTM D792
Shrinkage rate
TD:3.2 mm0.50%
MD:3.2 mm0.20%
Water absorption rate
23℃,24hr0.020%ASTM D570

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch9.0kJ/m²ISO 180/A
3.2mm91J/mASTM D256
Notched impact strength of cantilever beam25kJ/m²ISO 180
3.2 mm400J/mASTM D4812

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed265ASTM D648
Linear coefficient of thermal expansion
TD ASTM E831
MD ASTM E831
-50 to 50 ℃2.0E-5cm/cm/℃ASTM E831
100 to 200 ℃1.5E-5cm/cm/℃ASTM E831
-50 to 50 ℃4.0E-5cm/cm/℃ASTM E831
100 to 200 ℃8.0E-5cm/cm/℃ASTM E831
Thermal conductivity coefficient0.32W/m/K
UL temperature rating200 to 220UL 746B

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+16ohmsASTM D257
Volume resistivity1.0E+16ohms·cmASTM D257
Dielectric strength20kV/mmASTM D149
Dielectric constant ASTM D150
25 ℃,1 kHz3.90 ASTM D150
25 ℃,1 MHz3.80 ASTM D150
Dissipation factor ASTM D150
25℃,1 kHz2.0E-3 ASTM D150
25℃,1 MHz2.0E-3 ASTM D150
Arc resistance125secASTM D495
Compared to the leakage tracing index130VUL 746
insulation resistance
90℃1.0E+11ohms

FLAME CHARACTERISTICSNominal valueUnitTest method
1.60 mmV-0 5VA UL 94
Extreme oxygen index47%ASTM D2863

MECHANICALNominal valueUnitTest method
tensile strength159MPaASTM D638
tensile strength150MPaISO 527-2
Tensile strain
fracture1.2%ISO 527-2
fracture1.1%ASTM D638
Bending modulus14500MPaASTM D790
Bending modulus14000MPaISO 178
bending strength221MPaASTM D790
bending strength220MPaISO 178
compressive strength270MPaASTM D695
Poisson’s ratio0.38 
Rockwell hardness ASTM D785
M-level104 ASTM D785
R-level122 ASTM D785

Notes
1. Typical properties: these are not to be construed as specifications.
2. 95%RH, 48 hr
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