PA66 ASAHI KASEI 14G25 Resin

Material Introduction: PA66 ASAHI KASEI 14G25 (Japan Asahi Kasei) is a high‑performance 25% glass‑fiber‑reinforced heat‑stabilized PA66 engineering plastic. It features high strength, high rigidity, good heat resistance, dimensional stability, as well as outstanding creep resistance and fatigue resistance. Its inherent water‑absorption property will affect dimensional stability and partial performances; strict drying is mandatory before processing.

Main Applications

Automotive industry: Engine peripheral components (engine brackets), bearing cages, gears, pulleys, high‑pressure sealing gaskets, valve seats, oil pipelines and oil storage containers.

Electronic‑electrical industry: Components for electrical and electronic applications.

Industrial parts: Industrial gears, sealing rings, various handles and support frames.

Performance Parameters

Performance Category	Test Condition / Standard	Unit	Typical Value	Remarks & Interpretation
Physical Properties
Density / Specific Gravity	ASTM D792 / ISO 1183	g/cm³	1.32	25% glass‑fiber reinforced, heat‑stabilized grade
Water Absorption (Saturated,23℃)	‑	%	1.9	‑
Equilibrium Water Absorption (23℃,50%RH)	ISO 62	%	1.9	‑
Molding Shrinkage‑Flow Direction	Asahi Kasei internal method	%	0.50	‑
Molding Shrinkage‑Transverse Direction	Asahi Kasei internal method	%	0.90	‑
Mechanical Properties
Tensile Yield Strength	ASTM D638	MPa	180(dry) / 110(wet)	‑
Elongation at Break	ASTM D638	%	3(dry) / 6(wet)	‑
Flexural Strength	ASTM D790	MPa	290(dry) / 175(wet)	‑
Flexural Modulus	ASTM D790	GPa	8.1(dry) / 4.7(wet)	‑
Izod Notched Impact Strength	ASTM D256	J/m	105(dry) / 160(wet)	‑
Rockwell Hardness (R‑scale)	ASTM D785	‑	120(dry)	‑
Rockwell Hardness (M‑scale)	ASTM D785	‑	96(dry) / 74(wet)	‑
Thermal Properties
HDT @1.82 MPa	ASTM D648	℃	250	‑
HDT @0.46 MPa	ASTM D648	℃	260	‑
Linear Thermal Expansion Coefficient‑Flow	ASTM D696	×10⁻⁵/K	3	‑
Thermal Conductivity	‑	W/(m·K)	0.3	‑
Electrical Properties
Volume Resistivity	ASTM D257 / IEC 60093	Ω·cm	10¹⁵	‑
Dielectric Strength	ASTM D149 / IEC 60243‑1	kV/mm	32(estimated)	Converted from 740 V/mil
Flammability
UL94 Rating (0.71 mm / 1.5 mm)	‑	‑	HB	‑

Injection Molding Parameters

Processing Item	Recommended Range / Condition	Notes & Explanations
Drying Treatment	Hot‑air drying above 80 ℃ for at least 4‑6 h; vacuum‑dry at 100‑105 ℃ for over 6‑8 h under high‑humidity conditions.	Critical operation. Control moisture content ≤0.2% to avoid hydrolysis‑induced bubbles, silver streaks and mechanical‑property deterioration. Use immediately after drying or seal and keep warm properly.
Melt Temperature	275‑285 ℃, general range for reinforced grades.	Adjust according to equipment and products. Avoid temperature＞300 ℃ or long residence‑time to prevent material degradation.
Mold Temperature	80 ℃ recommended.	Mold temperature affects crystallinity and final properties. Thin‑wall parts molded below 40 ℃ may require annealing for geometric stability.
Injection Pressure	750‑1250 bar.	Subject to product and mold design; appropriately increase injection pressure for glass‑fiber reinforced grade.
Injection Speed	High speed (moderately reduced for reinforced materials).	High‑speed filling facilitates mold‑filling; excessive speed may cause uneven glass‑fiber orientation and poor venting.
Runner & Gate	Gate bore ≥0.5*t (t = part wall thickness). Smaller gate size for hot runner vs conventional runner. Minimum diameter for submarine gate:0.75 mm.	Short solidification time of PA66, gate location & dimension are critical for filling.
Molding Shrinkage	Flow direction:0.50%; Transverse direction:0.90%.	Obvious anisotropy, special attention required in mold design.

Disclaimer: All above data is for reference only.