Grade Introduction: Toughened & heat-stabilized PA66 injection molding grade.
Basic Information
Chemical Type: PA66 (Polyamide 66)
Grade: TR161
Appearance: Natural / black pellets
Processing Technology: Injection Molding
Core Characteristics
Toughened modification with excellent impact resistance and fatigue resistance
Excellent long-term heat resistance and thermal oxidative aging resistance
Good resistance to engine oil, grease and chemical solvents
Superior electrical insulation property
Moderate fluidity and stable molding cycle
Key Physical Properties (ISO Standard, 23℃)
 

Property	Unit	Typical Value (Dry / Conditioned)
Density	g/cm³	1.14 / 1.14
Equilibrium Water Absorption (50%RH)	%	— / 2.5
Tensile Strength	MPa	64 / 45
Tensile Elongation at Break	%	15 / ＞100
Tensile Modulus	GPa	2.4 / 1.1
Flexural Strength	MPa	88 / 38
Flexural Modulus	GPa	2.2 / 1.0
Charpy Notched Impact Strength	kJ/m²	15 (Dry)
HDT (1.8MPa)	℃	66
UL94 Flammability Rating	—	V-2 (0.75mm)

 

Typical Applications
Automotive industry: Connectors, fasteners, clips, interior structural parts, wire harness sheaths
Electronic & electrical industry: Sockets, switch housings, terminal blocks, coil bobbins
General machinery: Gears, bearing seats, brackets, wear-resistant accessories
Home appliances: Outer casings, structural parts, handles, bases
Processing Recommendations
Drying: 80–85℃ for 4–6 hours, moisture content ≤ 0.2%
Barrel temperature: 260–280℃
Mold temperature: 60–80℃
Molding shrinkage rate: 1.7%–2.2%
Compliance & Certifications
UL94 V-2 (0.75mm)
RoHS compliant, suitable for export electronic & electrical products.