PA66 ASAHI KASEI 1300S Resin

Material Introduction: PA66 ASAHI KASEI 1300S (Japan Asahi Kasei) is a well‑balanced general‑purpose unreinforced injection‑molding PA66 resin. Its core advantages include good flowability, high rigidity, toughness, wear resistance, UL94 V‑2 flame‑retardant rating and excellent electrical insulation performance. Its inherent water‑absorption property will affect dimensional stability and partial performances (large performance difference between dry and conditioned state); strict drying is mandatory before processing.

Main Applications

Electronic‑electrical industry: Connectors, coil bobbins, switches, relays, terminal blocks, cable ties and other electrical insulating parts.

Automotive industry: Automotive interior parts, auto components & fittings, gears and housings.

Mechanical parts / Industrial fittings: Bearings, rollers, sealing rings, various handles, support frames and structural components.

Household appliances / Consumer goods: Home appliance parts, toys, suitcases, strollers, kitchen supplies, sports articles and athletic equipment.

Performance Parameters

Performance Category	Test Condition / Standard	Unit	Typical Value	Remarks & Interpretation
Physical Properties
Density	ASTM D792 / ISO 1183	g/cm³	1.14	Unreinforced general‑purpose grade
Equilibrium Water Absorption (23℃,50%RH)	ISO 62	%	2.5	‑
Molding Shrinkage‑Flow Direction	Asahi Kasei internal method / ASTM D995	%	1.3‑2.0	‑
Mechanical Properties
Tensile Yield Strength	ASTM D638 / ISO 527‑2	MPa	79(dry) / 57(wet)	‑
Elongation at Break	ASTM D638 / ISO 527‑2	%	50(dry) / 250(wet)	‑
Flexural Strength	ASTM D790 / ISO 178	MPa	118(dry) / 54(wet)	‑
Flexural Modulus	ASTM D790 / ISO 178	MPa	2800(dry) / 1200(wet)	‑
Charpy Notched Impact Strength	ASTM D256 / ISO 179	J/m / kJ/m²	39 J/m(dry) / 147 J/m(wet) / 6.0 kJ/m²(dry) / 15 kJ/m²(wet)	‑
Rockwell Hardness (R‑scale)	ASTM D785	‑	120(dry) / 108(wet)	‑
Taber Abrasion (1000 cycles)	ASTM D1044	mg	7.00	‑
Thermal Properties
HDT @1.8 MPa	ASTM D648 / ISO 75‑2/A	℃	70	‑
HDT @0.45 MPa	ASTM D648 / ISO 75‑2/B	℃	230	‑
Linear Thermal Expansion Coefficient‑Flow	ASTM D696	cm/cm/℃	8.0E‑5	‑
Thermal Conductivity	‑	W/(m·K)	0.20	‑
Specific Heat Capacity	‑	J/(kg·K)	1670	‑
Electrical Properties
Volume Resistivity	ASTM D257 / IEC 60093	Ω·cm	10¹⁴	‑
Dielectric Strength	ASTM D149 / IEC 60243‑1	kV/mm	20	‑
Comparative Tracking Index (CTI)	IEC 60112	V	600	‑
Flammability
UL94 Rating (0.71 mm / 1.5 mm)	‑	‑	V‑2	‑
Limiting Oxygen Index (LOI)	ASTM D2863	%	26	‑

Injection Molding Parameters

Processing Item	Recommended Range / Condition	Notes & Explanations
Drying Treatment	Hot‑air drying at 80‑85 ℃ 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	270‑290 ℃ general range.	Adjust according to equipment and products. PA66 has high melting‑point; avoid temperature＞300 ℃ or long residence‑time to prevent thermal degradation.
Mold Temperature	70‑90 ℃ for most parts.	Higher mold temperature improves crystallinity, surface gloss, mechanical performance and dimensional stability. Lower mold temperature shortens cycle time yet may bring internal stress or poor appearance.
Injection Pressure	60‑100 MPa, adjust per product & mold design.	Low‑viscosity PA66 with good flowability. Higher pressure may be required for complex or thin‑wall articles.
Injection Speed	Medium‑high speed.	Fast filling prevents short‑shot and weld‑line caused by rapid cooling.
Back Pressure	0.5‑0.7 MPa (approx.5‑7 kgf/cm²).	Moderate back‑pressure homogenizes melt and facilitates venting; excessive back‑pressure reduces plasticizing efficiency and may cause overheating.
Screw Speed	Medium speed.	Avoid excessive shear force to prevent thermal degradation.
Runner & Gate	Gate size shall not be too small, ≥0.5‑0.6 × part wall‑thickness is recommended.	Short solidification time of PA66, gate location & dimension are critical for filling. Hot‑runner system works well.
Shutdown Notice	Purge barrel with PE / PP of good thermal stability on pause or shutdown to prevent carbonization of residual PA66; turn off heating system for long‑term shutdown.	‑
Molding Shrinkage	1.3%‑2.0%.	Typical range, affected by process parameters(melt temp, mold temp, packing pressure) and product wall‑thickness.

Disclaimer: All above data is for reference only.