Ultradur® B 4300 G6

About
Ultradur B 4300 G6 is an easy flowing injection molding PBT with 30% glass fiber reinforcement for rigid, tough, and dimensionally stable parts. Applications Typical applications include windshield wiper arms, printed circuit boards, housings, consoles, contact carriers, and covers.&&

Product Description
SupplierBASF
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesGood Rigidity,Good flexibility,Good Dimensional Stability,Good liquidity,HB
AvailabilitysNorth America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.53g/cm³ASTM D792
Density1.53g/cm³ISO 1183
Melt Volume Rate
250℃,2.16 kg11.0cm³/10minISO 1133
Shrinkage rate ISO 294-4
MD:3.2 mm0.30%
TD1.1%ISO 294-4
MD0.34%ISO 294-4
Water absorption rate
Saturation, 23 ℃0.40%ISO 62
saturated0.40%ASTM D570
Equilibrium, 23 ℃, 50% RH0.20%ISO 62
Balance, 50% RH0.20%ASTM D570
Viscosity value
Reduced viscosity102.0ml/gISO 1628

MECHANICALNominal valueUnitTest method
Tensile modulus
23℃10000MPaISO 527-2
tensile strength ISO 527-2
Fracture, 23 ℃135MPaASTM D638
Fracture, -40 ℃204MPaISO 527-2
Fracture, 23 ℃135MPaISO 527-2
Tensile strain ISO 527-2
Fracture, 23 ℃2.5%ASTM D638
Fracture, -40 ℃2.8%ISO 527-2
Fracture, 23 ℃2.5%ISO 527-2
Tensile creep modulus
1000 hr7500MPaISO 899-1
Bending modulus
23℃8800MPaISO 178
23℃8070MPaASTM D790
bending strength
23℃200MPaISO 178

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃11kJ/m²ISO 179
Charpy Unnotch Impact strength ISO 179
-30℃74kJ/m²ISO 179
23℃67kJ/m²ISO 179
Impact strength of cantilever beam notch
23℃91J/mASTM D256

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed215ISO 75-2/A
1.8 MPa, unannealed210ASTM D648
0.45 MPa, unannealed220ISO 75-2/B
0.45 MPa, unannealed220ASTM D648
Melting peak temperature223ASTM D3418
Melting temperature
DSC223ISO 3146
Linear coefficient of thermal expansion
MD2.5E-51/℃
0.75 mm130UL 746
1.5 mm130UL 746
3.0 mm130UL 746
Relative temperature index
Electrical performance UL 746
Strength mechanical performance, 3.00 mm140UL 746
Impact mechanical performance UL 746
1.5 mm105UL 746
3.0 mm125UL 746

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+13ohmsIEC 60093
1.5 mm1.0E+13ohmsASTM D257
Volume resistivity> 1.0E+13ohms·cmIEC 60093
1.50 mm> 1.0E+13ohms·cmASTM D257
Dielectric constant IEC 60250
100 Hz4.00 IEC 60250
1 MHz3.80 IEC 60250
Dissipation factor IEC 60250
100 Hz2.5E-3 IEC 60250
1 MHz0.017 IEC 60250
Compared to the leakage tracing index375VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level UL 94
1.50 mmHB UL 94
3.00 mmHB UL 94

Process Conditions
injectionNominal valueUnitTest method
Drying temperature100 to 120°C
Drying time4.0hr
Recommended maximum moisture content0.040%
Processing (melt) temperature250 to 270°C
Mold temperature60 to 100°C
Injection pressure3.50 to 12.5MPa
Injection speedFast 
Back pressure< 1.00MPa

Notes
1. Typical properties: these are not to be construed as specifications.
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