BASF Ultramid® A3WGM53 BK20560
Plastic Granules
BASF ULTRAMID A3WGM53 BK20560
Ultramid® A3WGM53 BK20560 is a BASF PA66/PA6 resin reinforced with glass fiber and mineral. It delivers high stiffness, dimensional stability, and a quality surface finish for injection molded parts. Ideal for automotive structural applications.
Typical property data
Physical Properties
- Density: 1480 kg/m³ (ISO 1183)
- Viscosity Number: 136 cm³/g (ISO 307, ISO 1157, ISO 1628)
- Moisture Absorption, Equilibrium at 23°C / 50% RH: 1.2–1.6% (similar to ISO 62)
- Water Absorption, Saturation in Water at 23°C: 4.8–5.4% (similar to ISO 62)
- Bulk Density: Approx. 0.7 g/cm³
- Physical Form: Granules
Mechanical Properties
- Tensile Modulus: 12100 / 6100 MPa (ISO 527-1/-2)
- Stress at Break: 160 / 80 MPa (ISO 527-1/-2)
- Strain at Break: 2.3 / 6% (ISO 527-1/-2)
- Flexural Modulus: 10100 / 5500 MPa (ISO 178)
- Flexural Strength: 225 / 125 MPa (ISO 178)
- Charpy Unnotched Impact Strength at 23°C: 55 / 62 kJ/m² (ISO 179/1eU)
- Charpy Unnotched Impact Strength at -30°C: 50 / — kJ/m² (ISO 179/1eU)
- Charpy Notched Impact Strength at 23°C: 8 / 16 kJ/m² (ISO 179/1eA)
- Charpy Notched Impact Strength at -30°C: 6.7 / — kJ/m² (ISO 179/1eA)
- Izod Notched Impact Strength at 23°C: 9.5 / 16 kJ/m² (ISO 180/A)
- Izod Notched Impact Strength at -30°C: 7.5 / — kJ/m² (ISO 180/A)
Electrical Properties
- Relative Permittivity at 1 MHz: 4 / — (IEC 62631-2-1)
- Dissipation Factor at 1 MHz: 200 × 10⁻⁴ / — (IEC 62631-2-1)
- Volume Resistivity: 1 × 10¹³ / 1 × 10¹⁰ Ω·m (IEC 62631-3-1)
- Surface Resistivity: 1 × 10¹² / 1 × 10¹⁰ Ω (IEC 62631-3-2)
- Comparative Tracking Index, CTI, Test Liquid A: — / 375 (IEC 60112)
Thermal Properties
- Melting Temperature, DSC: 260°C (ISO 11357-1/-3)
- Deflection Temperature Under Load, 1.8 MPa / HDT A: 225°C (ISO 75-1/-2)
- Deflection Temperature Under Load, 0.45 MPa / HDT B: 250°C (ISO 75-1/-2)
- Maximum Service Temperature, Short Cycle Operation: 240°C
- Temperature Index at 50% Loss of Tensile Strength after 5,000 h: 175°C (IEC 60216)
- Temperature Index at 50% Loss of Tensile Strength after 20,000 h: 145°C (IEC 60216)
- Coefficient of Linear Thermal Expansion, Longitudinal, 23–55°C: 27 × 10⁻⁶/K (ISO 11359-1/-2)
- Coefficient of Linear Thermal Expansion, Transverse, 23–55°C: 84 × 10⁻⁶/K (ISO 11359-1/-2)
- Thermal Conductivity: 0.35 W/(m·K) (DIN 52612-1)
- Specific Heat Capacity: 1500 J/(kg·K)
Processing Guide
- Processing Method: Injection moulding
- Melt Volume Rate, MVR at 275°C / 5 kg: 30 cm³/10 min (ISO 1133)
- Melt Temperature, Injection Moulding / Extrusion: 280–300°C
- Recommended Injection Moulding Melt Temperature: 290°C
- Mould Temperature, Injection Moulding: 80–90°C
- Recommended Injection Moulding Mold Temperature: 80°C
- Moulding Shrinkage, Constrained: 0.6%
- Molding Shrinkage, Parallel: 0.31% (ISO 294-4)
- Molding Shrinkage, Normal: 0.70% (ISO 294-4)
- Pre-drying Temperature: 80°C
- Pre-drying Time: 4 h
Use & Applications
- High-stiffness automotive parts, e.g. cylinder-head cover