Crastin® ST820 NC010

About
Unreinforced Polybutylene Terephthalate with Excellent Impact Resistance&&

Product Description
SupplierDuPont
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesHigh impact resistance,HB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe

Technical Data
IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-40℃10kJ/m²ISO 179/1eA
-30℃10kJ/m²ISO 179/1eA
23℃85kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃No Break ISO 179/1eU
23℃No Break ISO 179/1eU
Impact strength of cantilever beam notch ISO 180/1A
-40℃10kJ/m²ISO 180-1A
-30℃15kJ/m²ISO 180-1A
23℃60kJ/m²ISO 180-1A
Notched impact strength of cantilever beam ISO 180/1U
-40℃270kJ/m²ISO 180/1U
-30℃No Break ISO 180/1U
23℃No Break ISO 180/1U

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed50.0ISO 75-2/A
0.45 MPa, annealed145ISO 75-2/B
0.45 MPa, unannealed100ISO 75-2/B
Vicat Softening Temp
B50125ISO 306
Melting temperature225ISO 11357-3
Linear coefficient of thermal expansion
TD1.9E-41/℃ISO 11359-2
MD1.9E-41/℃ISO 11359-2

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+15ohmsIEC 60093
Volume resistivity> 1.0E+15ohms·cmIEC 60093
Dielectric strength27kV/mmIEC 60243-1
Dissipation factor IEC 60250
100 Hz0.020 IEC 60250
1 MHz0.019 IEC 60250
Compared to the leakage tracing index600VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
0.80 mmHB UL 94
Burning rate
1 mm38mm/minISO 3795
Flammability level
0.8 mmHB IEC 60695-11-10, -20
Extreme oxygen index19%ISO 4589-2
FMVSS flame retardant ratingB FMVSS 302
Fogging(Gvalue,condensate)1.0E-4gISO 6452

MECHANICALNominal valueUnitTest method
Tensile modulus1700MPaISO 527-2
tensile strength
yield38.0MPaISO 527-2
Tensile strain
yield7.0%ISO 527-2
Nominal tensile fracture strain> 50%ISO 527-2
Bending modulus1550MPaISO 178
bending strength50.0MPaISO 178
Rockwell hardness
R-level104 ISO 2039-2

PHYSICALNominal valueUnitTest method
Density1.22g/cm³ISO 1183
Shrinkage rate ISO 294-4
TD1.8%ISO 294-4
MD2.5%ISO 294-4
MD1.9%ISO 294-4
Water absorption rate
Saturation, 23 ℃, 2.00 mm0.31%ISO 62
Equilibrium, 23 ℃, 50% RH, 2.00 mm0.12%ISO 62
Melt density1.03g/cm³
Ejection temperature170
Specific Heat Capacity of Melt2100J/kg/℃
Thermal Conductivity of Melt0.20W/m/K

Process Conditions
injectionNominal valueUnitTest method
Drying temperature120°C
Drying time – hot air dryer2.0 to 4.0hr
Recommended maximum moisture content0.040%
Processing (melt) temperature240 to 260°C
Melt Temperature, Optimum250°C
Mold temperature30 to 130°C
Mold Temperature, Optimum80°C
Hold pressure60.0MPa
Back pressureAs low as possible 
Drying Recommendedyes 
Hold Pressure Time3.00s/mm

Notes
1. Typical properties: these are not to be construed as specifications.
2. Annealed
3. 10°C/min
4. FMVSS 302
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Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials.