BASF Ultramid® A3HG7
Plastic Granules
BASF ULTRAMID A3HG7 Nylon PA66 Resin
Ultramid® A3HG7 is a 35% glass fiber-reinforced, injection molding-grade polyamide 66 (PA66) resin offering exceptional stiffness, dimensional stability, and electrical insulation properties. Designed for demanding applications, it addresses industry needs for durability, precision, and reliability.
Typical property data
Physical Properties
- Density: 1410 kg/m³ (ISO 1183)
- Moisture Absorption (23°C, 50% R.H.): 1.4 – 1.8% (similar to ISO 62)
- Water Absorption (Saturation at 23°C): 4.7 – 5.3% (similar to ISO 62)
Mechanical Properties
- Tensile Modulus: 11,400 MPa / 8,500 MPa (ISO 527-1/-2)
- Stress at Break: 210 MPa / 150 MPa (ISO 527-1/-2)
- Strain at Break: 3.5% / 5.8% (ISO 527-1/-2)
- Flexural Modulus: 10,500 MPa / 8,100 MPa (ISO 178)
- Flexural Strength: 320 MPa / 230 MPa (ISO 178)
Impact Properties
- Charpy Unnotched Impact Strength (23°C): 100 / 105 kJ/m² (ISO 179/1eU)
- Charpy Unnotched Impact Strength (-30°C): 80 / 80 kJ/m² (ISO 179/1eU)
- Charpy Notched Impact Strength (23°C): 14 / 17.4 kJ/m² (ISO 179/1eA)
- Charpy Notched Impact Strength (-30°C): 11.2 / 10.6 kJ/m² (ISO 179/1eA)
Thermal Properties
- Melting Temperature (DSC): 260°C (ISO 11357-1/-3)
- Heat Deflection Temperature (HDT A, 1.8 MPa): 250°C (ISO 75-1/-2)
- Heat Deflection Temperature (HDT B, 0.45 MPa): 260°C (ISO 75-1/-2)
- Coefficient of Linear Thermal Expansion (23 – 55°C):
- Longitudinal: 22 E-6/K
- Transverse: 93 E-6/K (ISO 11359-1/-2)
- Thermal Conductivity: 0.35 W/m·K (DIN 52612-1)
- Specific Heat Capacity: 1500 J/(kg·K)
Electrical Properties
- Relative Permittivity (1 MHz): 3.5 / 5.7 (IEC 62631-2-1)
- Dissipation Factor (1 MHz): 200 / 1500 E-4 (IEC 62631-2-1)
- Volume Resistivity: 1E13 / 1E10 Ω·m (IEC 62631-3-1)
- Surface Resistivity: 1E12 / 1E10 Ω (IEC 62631-3-2)
- Comparative Tracking Index (CTI): 550 (Conditioned) (IEC 60112)
Flame Characteristics
- UL 94 Flammability:
- 1.5 mm: HB (IEC 60695-11-10)
- 0.8 mm: HB (IEC 60695-11-10)
- Oxygen Index: 24% (ISO 4589-1/-2)
Processing Guide
- Melt Temperature (Injection Molding/Extrusion): 280-300°C
- Mold Temperature: 80-90°C
- Pre-drying Conditions:
- Temperature: 80°C
- Time: 4 hours
- Mold Shrinkage:
- Parallel: 0.50% (ISO 294-4)
- Normal: 0.80% (ISO 294-4)
Features & Benefits
Exceptional Mechanical Strength
Reinforced with 35% glass fiber, Ultramid® A3HG7 provides high tensile strength and stiffness, ideal for structural components.
High Dimensional Stability
This PA66 resin resists moisture and thermal deformation, enabling tight tolerances for precision applications like automotive and industrial parts.
Reliable Electrical Insulation
Ultramid® A3HG7 offers robust insulation properties, making it suitable for electrical housings and connectors that demand safety and efficiency.
Use & Applications
- Automotive Components: Gear wheels, intake manifolds, and cylinder head covers.
- Electrical Parts: Connectors, solenoid valve housings, and insulation parts for high-performance devices.
- Industrial Equipment: Cable guides, durable housings, and structural elements.