A. Schulman BMC T40(18) Die Casting Replacement Grade Molding Compound

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A. Schulman BMC T40(18) Die Casting Replacement Grade Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS; Polyester (Thermoset) - Rigid
Material Notes:	BMC T40(18) was formulated as a direct replacement for aluminum die casting applications. T40(18) is UL recognized. Excellent mechanical properties and dimensional control allow molded parts to maintain machined tolerances. Typical applications are fractional H.P. motor end bases, electrical and structural parts. Information provided by Bulk Molding Compounds, Inc.
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Physical Properties	Metric	English	Comments

Density	1.79 - 1.92 g/cc	0.0647 - 0.0694 lb/in³	Molded
Linear Mold Shrinkage	0.0010 - 0.0020 cm/cm	0.0010 - 0.0020 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	50 - 60	50 - 60
Tensile Strength	65.5 - 79.3 MPa	9500 - 11500 psi
Flexural Strength	134 - 162 MPa	19500 - 23500 psi
Flexural Modulus	6.89 - 8.27 GPa	1000 - 1200 ksi
Compressive Strength	131 - 159 MPa	19000 - 23000 psi
Izod Impact, Notched	4.27 - 5.34 J/cm	8.00 - 10.0 ft-lb/in

Electrical Properties	Metric	English	Comments
Dielectric Strength	13.2 - 15.2 kV/mm	335 - 385 kV/in	short time
Arc Resistance	>= 190 sec	>= 190 sec
Comparative Tracking Index	>= 500 V	>= 500 V

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	>= 260 °C	>= 500 °F
Flammability, UL94	V-0	V-0	UL 94 V0/UL 94 5V

Processing Properties	Metric	English	Comments
Processing Temperature	138 - 166 °C	280 - 330 °F

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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