BASF Ultramid® A3SK
Plastic Granules
BASF ULTRAMID A3SK Nylon PA66 Resin
Ultramid® A3SK is a high-performance PA66 resin designed for precision injection molding. With superior flowability, improved oil resistance, and shorter cycle times, it is ideal for producing thin-walled technical parts like housings and small components.
Typical property data
Physical Properties
- Density: 1140 kg/m³ (ISO 1183)
- Viscosity Number: 150 cm³/g at 0.5% in 96% H₂SO₄ (ISO 307, 1157, 1628)
- Water Absorption, Saturation in Water at 23°C: 8–9% (Similar to ISO 62)
- Moisture Absorption, Equilibrium at 23°C/50% RH: 2.5–3.1% (Similar to ISO 62)
Mechanical Properties
- Tensile Modulus: 3500 MPa / 1600 MPa (ISO 527-1/-2)
- Yield Stress: 95 MPa / 60 MPa (ISO 527-1/-2)
- Yield Strain: 4.3% / 20% (ISO 527-1/-2)
- Flexural Modulus: 3200 MPa / – (ISO 178)
- Nominal Strain at Break: 15% / >50% (ISO 527-1/-2)
Impact Properties
- Charpy Notched Impact Strength (23°C): 4 kJ/m² / 15 kJ/m² (ISO 179/1eA)
- Izod Notched Impact Strength (23°C): 4 kJ/m² / 30 kJ/m² (ISO 180/A)
- Izod Notched Impact Strength (-30°C): 4 kJ/m² / – (ISO 180/A)
Thermal Properties
- Melting Temperature (DSC): 260°C (ISO 11357-1/-3)
- Deflection Temperature under Load, HDT A (1.8 MPa): 75°C (ISO 75-1/-2)
- Deflection Temperature under Load, HDT B (0.45 MPa): 220°C (ISO 75-1/-2)
- Maximum Service Temperature (Short Cycle): 200°C
- Temperature Index (50% Loss of Tensile Strength After 5,000 h): 118°C (IEC 60216)
- Coefficient of Linear Thermal Expansion, Longitudinal (23–55°C): 98 E-6/K (ISO 11359-1/-2)
- Thermal Conductivity: 0.33 W/(m K) (DIN 52612-1)
Electrical Properties
- Relative Permittivity (1 MHz): 3.2 / 5 (IEC 62631-2-1)
- Dissipation Factor (1 MHz): 250E-4 / 2000E-4 (IEC 62631-2-1)
- Volume Resistivity: 1E13 Ohm·m / 1E10 Ohm·m (IEC 62631-3-1)
- Surface Resistivity: 1E13 Ohm / 1E10 Ohm (IEC 62631-3-2)
- Comparative Tracking Index (CTI): 600 (IEC 60112)
Flame Characteristics
- UL94 Flammability Rating, Nominal 1.5 mm: V-2 (IEC 60695-11-10)
- UL94 Flammability Rating, Nominal 0.8 mm: V-2 (UL-94, IEC 60695)
Processing Guide
- MVR (275°C/5 kg): 135 cm³/10 min (ISO 1133)
- Melt Temperature for Injection Moulding/Extrusion: 280–300°C
- Mould Temperature: 60–80°C
- Moulding Shrinkage (Constrained): 0.65%
Features & Benefits
Excellent Flowability for Efficiency
Ultramid® A3SK’s superior flowability ensures rapid, precise injection molding, optimizing production speed and reducing material waste.
High Thermal Resistance
With a melting temperature of 260°C, Ultramid® A3SK withstands extreme heat, ensuring dimensional stability under demanding conditions.
Exceptional Oil Resistance
Ultramid® A3SK offers strong resistance to oils, ideal for automotive and industrial applications exposed to harsh environments.
Use & Applications
- Automotive: Ideal for oil-resistant engine covers, housings, and under-hood components.
- Consumer Electronics: Perfect for durable, thin-walled laptop cases and structural parts.
- Industrial Equipment: Suitable for wear-resistant gears, industrial housings, and connectors requiring durability and precision.