PBT (polybutylene terephthalate) material properties

Duranex®: made by WinTech Polymer Ltd.
Grade 2016,3226,3316
Item Test method ASTM Unit 2016 3226 3316
Specific gravity D792 - 1.43 1.57 1.66
Glass fiber content rate - % - 20 30
Tensile strength D638 MPa 54 127 143
Tensile elongation % 25.0 3.4 2.7
Bending strength D790 MPa 98 186 224
Bending modulus of elasticity 2840 7250 10000
Izod impact strength Notch side D256 J/m 39 78 98
Opposite notch side 440 530 680
Thermal deformation temperature(1.82MPa) D648 ℃ 99 211 211
Flammability (UL94) - V-0 V-0 V-0
Dielectric breakdown strength D149 kV/mm 24 20 20
Specific volume resistance D257 Ω・cm 4×1016 1×1016 1×1016
Surface resistivity Ω 4×1016 1×1016 1×1016
Arc resistance D495 secs. (62) (76) (78)
Tracking resistance (IEC) V (250) (250) (250)
Grade 2016, 3226, 3316
UL standard certified value
UL94V-0
File No. E213445
Grade 1184G
Item

Test method

(ISO/IEC)

 Unit 1184G
Density ISO1183 kg/ｍ3 1630
Water absorption rate (in water at 23°C 24 hrs.) ISO62 % 0.07
Tensile strength ISO527-1,2 MPa 140
Tensile modulus of elasticity GPa 10
Tensile strain % 2.5
Bending strength ISO178 MPa 220
Bending modulus of elasticity GPa 9.5
Charpy
Impact strength		 With notch ISO179 kJ/ｍ2 9
Without notch kJ/ｍ2 65
Rockwell strength ISO2039-2 - M85
Thermal deformation temperature ISO75-1,2 ℃ 220
℃ 207
Linear expansion coefficient ISO11359-2 ℃ 4.1
Flammability UL94 - V-0(1/32")
Volume resistivity IEC60093 Ωm×'1014 11
Dielectric breakdown voltage IEC60243-1 MV/m 14
Permittivity 23℃, 60% RH IEC60250 - 4
- 3.8
Dissipation factor 23℃, 60% RH IEC60250 - 0.001
- 0.02
Arc resistance(W electrode) IEC60950 secs. 134
PBT4830 material properties
Item Test method ASTM Unit PBT4830
Glass fiber content - % 30
Specific gravity D792 - 1.57
Melting point DSC ℃ 225
Linear expansion coeffi cient D696 10-5cm/cm℃ 3
Thermal deformation temperature(18.6k/cm2) D648 ℃ 200
Thermal deformation temperature(4.6k/cm2) D648 ℃ 218
Water absorption rate　24 hrs. D570 % 0.03
Flammability (3.2 mm thickness) UL94 - V-0
Tensile strength D638 k/cm2 1130
Tensile elongation D638 % 3.4
Bending strength D790 k/cm2 1700
Bending modulus of elasticity D790 k/cm2 83,000
Izod impact strength(With notch) D256 k-cm/cm 9.2
Rockwell hardness D785 R scale 121
Dielectric breakdown voltage D149 KV/mm 20
Volume resistivity D257 Ω・cm 1015
Surface resistance D257 Ω 1013
Permittivity D150 60Hz 3.5
Dissipation factor D150 60Hz 0.001
Arc resistance D495 secs. 100

Note: The numeric values above are typical values. They are not standard values.

Grade 1403G6
Item Test method
(ASTM)		 Unit 1403G6
Properties Tensile strength D638 kg/cm2 1250
Tensile elongation D638 % 2.3
Bending strength D790 kg/cm2 1180
Bending modulus of elasticity D790 kg/cm2 85000
Izod impact strength(With notch) D256 kg-cm/cm 8.6
Rockwell hardness D256 R scale 120
Thermal properties Melting point DSC ℃ 224
Thermal deformation temperature(18.6kg/cm2) D648 ℃ 207
MFI D1238 g/10min 25
Electrical properties Volume resistivity D257 Ω・cm 1016
Dielectric breakdown voltage D149 kv/mm 20
Permittivity(106Hz) D150 - 3.0
Dissipation factor D150 - 0.01
Arc resistance D495 secs. 70
Other Specific gravity D792 - 1.61
Mold shrinkage rate(MD) 3mmt % 0.2-0.3
Mold shrinkage rate(TD) 3mmt % 0.6-1.2
Flammability UL94 - V-0
Remarks UL fi le no.: E130155 (M)