LyondellBasell Astryn BB724AC Polypropylene Copolymer

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LyondellBasell Astryn BB724AC Polypropylene Copolymer (discontinued **)
Categories:	Polymer; Thermoplastic; Polypropylene (PP)
Material Notes:	Key Features: medium high melt flow, high modulus, mineral-filled polypropylene copolymer, high rigidity, good impact resistance, good processability Applications: automotive heater and A/C ductwork Description: Astryn BB724AC medium high melt flow, precolored mineral-filled polypropylene copolymer is designed with an optimum balance of stiffness, impact resistance an processability. Information provided by Montell Polyolefins. LyondellBasell is the successor company to Montell.
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Physical Properties	Metric	English	Comments

Density	1.04 g/cc	0.0376 lb/in³	ASTM D792B
Linear Mold Shrinkage	0.010 cm/cm	0.010 in/in	Tool, Montell
Melt Flow	12 g/10 min @Load 2.16 kg, Temperature 230 °C	12 g/10 min @Load 4.76 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	67	67	ASTM D785
Tensile Strength, Ultimate	25.0 MPa	3630 psi	ASTM D638
Tensile Strength, Yield	26.0 MPa	3770 psi	ASTM D638
Flexural Modulus	2.20 GPa	319 ksi	ASTM D790A
Izod Impact, Notched	0.530 J/cm	0.993 ft-lb/in	ASTM D256A

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	115 °C	239 °F	ISO Method 75

**
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