Ultradur® B 4300 K4

About
Injection molding grade with 20% glass beads for low-warpage technical parts (eg precision parts for optical equipment, fuel level sensors, gas meter housings).&&

Product Description
SupplierBASF
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesLow warping,HB
AvailabilitysAsia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.45g/cm³ISO 1183
Apparent density0.70 to 0.80g/cm³
Melt Volume Rate
250℃,2.16 kg16.0cm³/10minISO 1133
Shrinkage rate ISO 294-4
TD1.9%ISO 294-4
MD1.9%ISO 294-4
Water absorption rate ISO 62
Saturation, 23 ℃0.40%ISO 62
Equilibrium, 23 ℃, 50% RH0.20%ISO 62
Viscosity number115cm³/gISO 307

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃4.0kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃26kJ/m²ISO 179/1eU
23℃35kJ/m²ISO 179/1eU

THERMALNominal valueUnitTest method
Hot deformation temperature 
0.45 MPa, unannealed170ISO 75-2/B
1.8 MPa, unannealed70.0ISO 75-2/A
Melting temperature223ISO 11357-3
Linear coefficient of thermal expansion
MD:23~80℃8.0E-5 to 9.0E-51/℃ISO 11359-2
specific heat1150J/kg/℃
Thermal conductivity coefficient0.27W/m/KDIN 52612

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+13ohmsIEC 60093
Volume resistivity1.0E+16ohms·cmIEC 60093
Relative permittivity IEC 60250
100 Hz4.00 IEC 60250
1 MHz3.70 IEC 60250
Dissipation factor IEC 60250
100 Hz0.012 IEC 60250
1 MHz0.019 IEC 60250
Compared to the leakage tracing index IEC 60112
Solution A250VIEC 60112
Solution B125VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method

MECHANICALNominal valueUnitTest method
Ball hardness
H358/30150MPaISO 2039-1
Tensile modulus3500MPaISO 527-2
tensile strength
fracture48.0MPaISO 527-2
Tensile strain
fracture6.0%ISO 527-2
Tensile creep modulus
1000 hr1300MPaISO 899-1
Bending modulus3400MPaISO 178
bending strength100MPaISO 178

Process Conditions
injectionNominal valueUnitTest method
Drying temperature80 to 120°C
Drying time4.0hr
Recommended maximum moisture content0.040%
Hopper temperature80°C
Barrel rear temperature240°C
Barrel middle temperature245°C
Barrel front temperature250°C
Nozzle temperature250°C
Processing (melt) temperature250 to 275°C
Mold temperature40 to 80°C
Screw Speed< 250mm/sec

Notes
1. Typical properties: these are not to be construed as specifications.
2. solution 0,005 g/ml Phenole/1,2 Dichlorbenzol 1:1
3. strain <= 0,5%, 23°C
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