BASF Ultramid® A3WG6 HRX BK23591
Plastic Granules
ULTRAMID A3WG6 HRX BK23591 Heat & Hydrolysis Stabilized Black Particles
Ultramid® A3WG6 HRX BK23591 is a 30% glass-fibre reinforced PA66 from BASF. It delivers 9,500 MPa tensile modulus and 245°C HDT/A. The HRX stabilization ensures superior hydrolysis and heat-ageing resistance. Ideal for automotive cooling circuits and under-hood parts.
Typical property data
Physical Properties
- Polymer Abbreviation: PA66-GF30
- Density: 1370 kg/m³ (ISO 1183)
- Viscosity Number (0.5% in 96% H₂SO₄): 160 cm³/g (ISO 307 / 1157 / 1628)
- Moisture Absorption, Equilibrium (23°C / 50% r.h.): 1.5 – 1.9 % (similar to ISO 62)
- Water Absorption, Saturation in Water at 23°C: 5.6 – 6.3 % (similar to ISO 62)
- Bulk Density (Granules): approx. 0.7 g/cm³
Mechanical Properties
- Tensile Modulus: 9,500 / 6,000 MPa (ISO 527-1/-2)
- Stress at Break: 185 / 110 MPa (ISO 527-1/-2)
- Strain at Break: 3.7 / 7.2 % (ISO 527-1/-2)
- Tensile Creep Modulus (1000 h, strain ≤ 0.5%, 23°C): — / 4,800 MPa (ISO 899-1)
- Flexural Modulus: 9,200 / 5,800 MPa (ISO 178)
- Flexural Strength: 285 / 185 MPa (ISO 178)
- Charpy Unnotched Impact Strength (23°C): 90 / 95 kJ/m² (ISO 179/1eU)
- Charpy Unnotched Impact Strength (-30°C): 75 / 75 kJ/m² (ISO 179/1eU)
- Charpy Notched Impact Strength (23°C): 11 / 15 kJ/m² (ISO 179/1eA)
- Charpy Notched Impact Strength (-30°C): 8 / — kJ/m² (ISO 179/1eA)
Thermal Properties
- Melting Temperature (DSC): 260 °C (ISO 11357-1/-3)
- Deflection Temperature Under Load, HDT/A (1.8 MPa): 245 °C (ISO 75-1/-2)
- Deflection Temperature Under Load, HDT/B (0.45 MPa): 260 °C (ISO 75-1/-2)
- Thermal Conductivity: 0.36 W/(m·K) (DIN 52612-1)
- Specific Heat Capacity: 1,260 J/(kg·K)
Electrical Properties
- Volume Resistivity: 8 × 10¹⁰ / — Ohm·m (IEC 62631-3-1)
- Surface Resistivity: — / 8 × 10¹² Ohm (IEC 62631-3-2)
Flame Characteristics
- Automotive Flammability (Thickness ≥ 1 mm): Passed (+) (ISO 3795 / FMVSS 302)
Processing Parameters
- Melt Temperature, Injection Moulding / Extrusion: 280 – 300 °C
- Melt Temperature, Recommended (Injection Moulding): 290 °C
- Mould Temperature, Injection Moulding: 80 – 90 °C
- Mould Temperature, Recommended (Injection Moulding): 80 °C
- MVR (275 °C / 5 kg): 10 cm³/10 min (ISO 1133)
- Moulding Shrinkage, Constrained: 0.4 – 0.5 % (Test box 107×47×1.5 mm; TM = 290°C, TW = 80°C)
- Moulding Shrinkage (Parallel): 0.40 % (ISO 294-4)
- Moulding Shrinkage (Normal): 1.20 % (ISO 294-4)
- Pre-Drying Temperature: 80 °C
- Pre-Drying Time: 4 h
Use & Applications
- For automotive cooling circuit parts