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Ultradur® B 4520

Category:	PBT , Polybutylene Terephthalate
Manufacturer:	BASF Corporation
Trademark:	Ultradur®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	PpMF1n_Ultradur-B-4520.pdf
PRICE:	Order Products email sales@su-jiao.com

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Ultradur B 4520 is a medium viscosity, rapidly freezing injection molding grade. Applications Typical applications include chassis and housings for home appliances, office and sewing machines, and coil formers.

General Information
Features	Medium Viscosity
Uses	Appliance Components Business Equipment Housings
Agency Ratings	EC 1907/2006 (REACH)
RoHS Compliance	RoHS Compliant
Forms	Pellets
Processing Method	Injection Molding
Multi-Point Data	Isothermal Stress vs. Strain (ISO 11403-1) Secant Modulus vs. Strain (ISO 11403-1) Shear Modulus vs. Temperature (ISO 11403-1) Specific Volume vs Temperature (ISO 11403-2) Viscosity vs. Shear Rate (ISO 11403-2)

Physical	Nominal Value	Unit	Test Method
Specific Gravity	1.30	g/cm³	ASTM D792, ISO 1183
Melt Volume-Flow Rate (MVR) (250°C/2.16 kg)	19.0	cm³/10min	ISO 1133
Molding Shrinkage - Flow (3.18 mm)	1.5	%
Water Absorption
Saturation	0.50	%	ASTM D570
Saturation, 23°C	0.50	%	ISO 62
Equilibrium, 50% RH	0.25	%	ASTM D570
Equilibrium, 23°C, 50% RH	0.25	%	ISO 62
Viscosity Number (Reduced Viscosity)	130.0	ml/g	ISO 1628

Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus (23°C)	2500	MPa	ISO 527-2
Tensile Strength
Yield, 23°C	60.0	MPa	ASTM D638, ISO 527-2
Yield, -40°C	94.0	MPa	ISO 527-2
Yield, 80°C	22.0	MPa	ISO 527-2
Yield, 121°C	18.0	MPa	ISO 527-2
Tensile Elongation (Yield, 23°C)	3.7	%	ASTM D638, ISO 527-2
Nominal Tensile Strain at Break (23°C)	> 50	%	ISO 527-2
Tensile Creep Modulus			ISO 899-1
1 hr	1800	MPa
1000 hr	1200	MPa
Flexural Modulus
23°C	2300	MPa	ASTM D790
23°C	2400	MPa	ISO 178

Impact	Nominal Value	Unit	Test Method
Charpy Notched Impact Strength			ISO 179
-30°C	3.0	kJ/m²
23°C	6.0	kJ/m²
Charpy Unnotched Impact Strength (23°C)	No Break		ISO 179
Notched Izod Impact			ASTM D256
-40°C	37	J/m
23°C	43	J/m

Thermal	Nominal Value	Unit	Test Method
Deflection Temperature Under Load
0.45 MPa, Unannealed	163	°C	ASTM D648
1.8 MPa, Unannealed	60.0	°C	ASTM D648, ISO 75-2/A
Peak Melting Temperature	223	°C	ASTM D3418, ISO 3146
CLTE - Flow	1.5E-4	cm/cm/°C
RTI Elec			UL 746
0.750 mm	130	°C
1.50 mm	130	°C
2.80 mm	130	°C
RTI Imp			UL 746
0.750 mm	130	°C
1.50 mm	130	°C
2.80 mm	130	°C
RTI Str			UL 746
0.750 mm	140	°C
1.50 mm	140	°C
2.80 mm	140	°C

Electrical	Nominal Value	Unit	Test Method
Surface Resistivity ¹	1.0E+13	ohms	ASTM D257, IEC 60093
Volume Resistivity
1.50 mm	> 1.0E+13	ohms·cm	ASTM D257
--	> 1.0E+13	ohms·cm	IEC 60093
Dielectric Constant			IEC 60250
100 Hz	3.40
1 MHz	3.30
Dissipation Factor			IEC 60250
100 Hz	2.0E-3
1 MHz	0.020
Comparative Tracking Index	550	V	IEC 60112

Flammability	Nominal Value	Unit	Test Method
Flame Rating			UL 94
0.750 mm	HB
1.50 mm	HB
2.80 mm	HB

Injection	Nominal Value	Unit
Drying Temperature	100 to 120	°C
Drying Time	4.0	hr
Suggested Max Moisture	0.040	%
Processing (Melt) Temp	250 to 270	°C
Mold Temperature	40.0 to 80.0	°C
Injection Pressure	3.50 to 12.5	MPa
Injection Rate	Fast
Back Pressure	< 1.00	MPa

Note Message
1 .	1.5 mm

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