PA66 BASF A3K Resin

Material Introduction: PA66 BASF A3K (Shanghai BASF) is a high‑flow, unreinforced general‑purpose injection‑molding PA66 resin. Its core advantages are excellent processing flowability, good mechanical strength, wear resistance, oil resistance and electrical insulation, with UL94 V‑2 flame‑retardant rating. Its inherent water‑absorption property will affect dimensional stability and partial performances; strict drying is mandatory before processing.

Main Applications

Electronic‑electrical industry: Cable connectors, electrical‑insulation components, terminals, switch housings and relay sockets.

Automotive industry: Intake manifolds, radiator fans, engine‑hood covers, fenders, oil pipelines and oil reservoirs.

Mechanical parts / Industrial fittings: Bearings, gears, pulleys, pump housings, high‑stress structural parts and industrial mechanical components.

Other fields: Sports‑equipment parts (ski‑shoe bases), medical‑device parts and consumer‑daily articles.

Performance Parameters

Performance Category	Test Condition / Standard	Unit	Typical Value	Remarks & Interpretation
Physical Properties
Density	ISO 1183	g/cm³	1.13‑1.14	Unreinforced high‑flow general‑purpose grade
Water Absorption (Saturated,23℃)	ISO 62	%	8.5	‑
Water Absorption (Equilibrium,23℃,50%RH)	ISO 62	%	2.8	‑
MVR	275℃/5.0 kg, ISO 1133	cm³/10min	120	Ultra‑high flowability
Molding Shrinkage (Flow Direction)	ISO 294‑4, ISO 2577	%	1.5	‑
Molding Shrinkage (Transverse Direction)	ISO 294‑4, ISO 2577	%	1.8	‑
Mechanical Properties
Tensile Modulus (23℃,dry)	ISO 527‑2	MPa	3000‑3600	‑
Tensile Strength (Yield,23℃,dry)	ISO 527‑2	MPa	85‑87	‑
Elongation at Break (23℃,dry)	ISO 527‑2	%	30	‑
Flexural Modulus (23℃,dry)	ISO 178	MPa	2900	‑
Charpy Notched Impact Strength (23℃,dry)	ISO 179/1eA	kJ/m²	5.0‑5.7	‑
Thermal Properties
HDT @1.8 MPa	ISO 75‑1/-2	°C	75	‑
HDT @0.45 MPa	ISO 75‑1/-2	°C	200‑220	‑
Melting Point	ISO 11357‑1/-3 / ISO 3146	°C	260	‑
Vicat Softening Temperature	ISO 306	°C	250	‑
Electrical Properties
Volume Resistivity (dry)	IEC 62631‑3‑1	Ω·m	10¹³	‑
Dielectric Strength (dry)	IEC 60243‑1	kV/mm	41	‑
Relative Permittivity (100Hz, dry)	IEC 62631‑2‑1	‑	3.8	‑
Flammability
UL94 Rating (0.71 mm /1.5 mm)	‑	‑	V‑2	V‑2 flame‑retardant grade
Limiting Oxygen Index (LOI)	ISO 4589‑1/-2	%	28	‑

Injection Molding Parameters

Processing Item	Recommended Range / Condition	Notes & Explanations
Drying Treatment	Hot‑air drying at 80 ℃ for 2‑4 h; alternatively 85 ℃ hot‑air drying. Vacuum‑dry at 105 ℃ for 12 h for opened packages or moisture＞0.2%.	Critical operation. Control moisture content ≤0.15%‑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	260‑290 ℃; alternative 280‑300 ℃ (recommended 290 ℃).	Fine‑tune according to equipment and part geometry. Avoid temperature＞300 ℃ or long residence‑time to prevent material degradation.
Mold Temperature	60‑80 ℃ (recommended 60 ℃ / 80 ℃); alternative 80 ℃. Mold temperature affects crystallinity and physical properties. Thin‑wall parts molded below 40 ℃ require annealing for geometric stability due to time‑dependent crystallinity change.	‑
Injection Pressure	750‑1250 bar.	Adjust per product & mold design.
Injection Speed	High‑speed injection (200 mm/s); reduce moderately for reinforced grades.	Fast filling is beneficial; mold shall be well‑ventilated.
Runner & Gate	Gate bore ≥0.5*t (t = part wall thickness). Hot‑runner gate size shall be smaller than conventional runner. Minimum diameter for submarine gate:0.75 mm.	Nylon solidifies rapidly; gate location and size are critical for filling.
Holding Time	10 min (thermoplastics).	Depends on part wall thickness.

Disclaimer: All above data is for reference only.