PA46 DSM‑Envalior TW241F6

PA46 DSM‑Envalior TW241F6 Resin

Material Introduction: PA46 DSM‑Envalior TW241F6 is a high‑performance engineering plastic reinforced with 30% glass fiber based on polyamide 46. It delivers excellent flowability, favorable dimensional stability, superior heat‑resistance, good wear‑resistance, sound chemical‑resistance, high mechanical strength and favorable processability, and is widely applied in multiple demanding industrial fields.

Main Applications

Automotive industry: Automotive bearing cages, end‑piece laminates (electrical components), wheel‑speed sensors and other parts. Its outstanding heat‑resistance, wear‑resistance and mechanical strength satisfy strict requirements for automotive components.

Electronic‑electrical industry: Connectors, controllers, sensors and other parts. Favorable electrical properties and HB‑grade flame retardancy maintain stable performance under complex working conditions.

Industrial components: Gears, bearings and other industrial parts requiring high‑temperature performance and wear‑resistance.

Performance Parameters

Performance Category	Test Item	Test Condition / Status	Test Standard	Typical Value	Unit	Remarks & Interpretation
Physical Properties	Density	‑	ISO 1183	1.41	g/cm³	30% glass‑fiber reinforced PA46
	Equilibrium Water Absorption (23℃,50%RH)	‑	ISO 62	2.6	%	‑
	Molding Shrinkage (flow direction)	‑	ISO 294‑4	0.50	%	‑
	Molding Shrinkage (cross‑flow direction)	‑	ISO 294‑4	1.3	%	‑
Mechanical Properties	Tensile Strength at Break	23℃, dry	ISO 527‑2	210	MPa	High‑strength reinforced grade
	Flexural Modulus	23℃, dry	ISO 178	9000	MPa	High‑rigidity performance
	Charpy Notched Impact Strength	23℃, dry	ISO 179/1eA	12	kJ/m²	‑
Thermal Properties	Heat‑Distortion Temperature (1.8 MPa, unannealed)	‑	ISO 75‑2/A	290	°C	Superior heat‑resistance
	Melting Point	‑	ISO 11357‑3	295	°C	‑
	Coefficient of Linear Thermal Expansion (flow direction)	‑	ISO 11359‑2	2.5E‑5	cm/cm/℃	‑
	Coefficient of Linear Thermal Expansion (cross‑flow direction)	‑	ISO 11359‑2	6.0E‑5	cm/cm/℃	‑
Electrical Properties	Volume Resistivity	Dry	IEC 60093	1.0E+14	Ω·cm	‑
	Dielectric Strength	Dry	IEC 60243‑1	30	kV/mm	‑
	Comparative Tracking Index(CTI)	‑	IEC 60112	300	V	‑
	UL94 Rating	0.75 mm	UL 94	HB	‑	Non‑flame‑retardant grade

Injection Molding Parameters

Processing Item	Typical Value / Range	Notes & Explanations
Drying Treatment	‑	Critical operation. PA46 is highly hygroscopic. Sufficient drying before processing is mandatory, otherwise bubbles, silver streaks and strength drop will occur. Dehumidifying dryer is recommended.
Drying Temperature	80 °C	‑
Drying Time	4.0‑8.0 h	Keep moisture content below 0.05% (500 ppm), maximum acceptable 0.1% (1000 ppm).
Barrel Temperature	‑	Notice: Melt temperature must never exceed 330 °C, short‑time overheating will cause polymer degradation.
Rear zone (feed zone)	280‑320 °C	‑
Middle zone (compression zone)	300‑320 °C	‑
Front zone (metering zone)	300‑320 °C	‑
Nozzle Temperature	300‑320 °C	‑
Melt Temperature	305‑320 °C	Optimum processing temperature:300‑315 °C for good mechanical performance.
Mold Temperature	80‑120 °C	Above 80 °C is preferred. High mold temperature (e.g.120 °C) improves appearance, weld‑line strength and dimensional stability; low mold temperature shortens cooling cycle.
Injection Speed	Medium‑fast	Relatively high injection speed is required for good filling and surface quality. High‑speed injection is essential due to fast solidification characteristic.
Back Pressure	2.00‑10.0 MPa	Approx.0.75 MPa (7.5 bar) recommended for homogeneous melt and degassing. Excessive back pressure prolongs plasticizing time and shortens glass‑fiber length.
Screw Compression Ratio	2.5:1	Suggested value for glass‑fiber‑reinforced PA46.

Disclaimer: All above data is for reference only.