Evonik Trogamid® BX7304 Nylon Blend

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Evonik Trogamid® BX7304 Nylon Blend (discontinued **)
Categories:	Polymer; Thermoplastic; Nylon (Polyamide PA); Nylon 6-3 (PA63)
Material Notes:	Description: The TOGAMID® BX grades cover reinforced and non-reinforced blends based on PA 6-3-T and semi-crystalline polyamides. Non-reinforced blends are permanently transparent. Some blends have been developed in particular for manufacturing plastic-rubber composites. The special characteristics are: high resistance to stress cracking resistant to grease and fuels good strength high hardness very low mold shrinkage very low tendency to warp low moisture absorption dimensionally stable even while absorbing water The polyamide blends are especially suitable for the production of injection-molded parts subject to high thermal and mechanical stress. Thanks to their high stiffness moldings made from reinforced grades are appropriate for substituting cast metal parts, and are significantly lighter than these. Moldings exhibit outstanding surface qualities in spite of their high glass fiber content. TROGAMID® BX compounds can be combined with various rubber mixtures to produce plastic-rubber composite parts that are resistant to fuel and oil. Specific Notes for this Material: Permanently transparent polymer blend consisting of an amorphous and semi-crystalline polyamide for injection molding; improved stress-cracking resistance, low water absorption Information provided by degussa. Evonik Industries is the successor company to Degussa.
Key Words:	PA 6-3-T/XX, trimethyl hexamethylene diamine terephthalic acid
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Physical Properties	Metric	English	Comments

Density	1.08 g/cc	0.0390 lb/in³	ISO 1183
Viscosity Number	160 cm³/g	1.60 dl/g	ISO 307

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	84	84	ISO 868
Ball Indentation Hardness	130 MPa	18900 psi	H30; ISO 2039-1
Tensile Strength, Yield	82.0 MPa	11900 psi	50 mm/min; ISO 527-1/2
Elongation at Break	>= 50 %	>= 50 %	50 mm/min; ISO 527-1/2
Elongation at Yield	6.0 %	6.0 %	50 mm/min; ISO 527-1/2
	8.0 %	8.0 %	5 mm/min, Outer fiber strain at maximum stress; ISO 178
Tensile Modulus	2.20 GPa	319 ksi	ISO 527-1/2
Flexural Strength	80.0 MPa	11600 psi	5 mm/min, at 3.5% Strain; ISO 178
	118 MPa	17100 psi	5 mm/min; ISO 178
Flexural Modulus	2.70 GPa	392 ksi	ISO 178
Charpy Impact Unnotched	NB @Temperature 0.000 °C	NB @Temperature 32.0 °F	ISO 179/1eU
	NB @Temperature -30.0 °C	NB @Temperature -22.0 °F	ISO 179/1eU
	NB @Temperature 23.0 °C	NB @Temperature 73.4 °F	ISO 179/1eU
Charpy Impact, Notched	0.800 J/cm² @Temperature -30.0 °C	3.81 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eA
	0.900 J/cm² @Temperature 23.0 °C	4.28 ft-lb/in² @Temperature 73.4 °F	ISO 179/1eA
Tensile Creep Modulus, 1 hour	2200 MPa	319000 psi	ISO 899-1
Tensile Creep Modulus, 1000 hours	800 MPa	116000 psi	ISO 899-1

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	>= 1.00e+15 ohm-cm	IEC 60093
Surface Resistance	>= 1.00e+13 ohm	>= 1.00e+13 ohm	IEC 60093
	>= 1.00e+15 ohm	>= 1.00e+15 ohm	Spec.; IEC 60093
Dielectric Strength	19.0 kV/mm	483 kV/in	K20/P50; IEC 60243-1
Dissipation Factor	0.0425 @Frequency 1e+6 Hz	0.0425 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	600 V	Test Solution A, 100 drops; IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear	70.0 µm/m-°C @Temperature 23.0 - 80.0 °C	38.9 µin/in-°F @Temperature 73.4 - 176 °F	Longitudinal; ISO 11359
CTE, linear, Transverse to Flow	70.0 µm/m-°C @Temperature 23.0 - 80.0 °C	38.9 µin/in-°F @Temperature 73.4 - 176 °F	ISO 11359
Deflection Temperature at 0.46 MPa (66 psi)	85.0 °C	185 °F	ISO 75-1/2
Deflection Temperature at 1.8 MPa (264 psi)	75.0 °C	167 °F	ISO 75-1/2
Vicat Softening Point	99.0 °C	210 °F	50N; ISO 306
Glass Transition Temp, Tg	93.0 °C	199 °F	Tg, 10 K/min
Flammability, UL94	HB @Thickness 1.60 mm	HB @Thickness 0.0630 in
	HB @Thickness 0.800 mm	HB @Thickness 0.0315 in

**
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