BASF Ultramid® A3W
Plastic Granules
BASF ULTRAMID A3W Heat Aging Resistant Injection Moulding Grade
Ultramid® A3W is a premium-grade Nylon 66 resin that delivers unmatched performance in fast molding cycles, excellent flowability, robust heat-aging resistance, and superior oil resistance. This makes it the ideal solution for demanding industrial applications in automotive, electrical, and mechanical components.
Typical property data
Physical Properties
- Density: 1130 kg/m³ (ISO 1183)
- Viscosity Number (0.5% in 96% H₂SO₄): 150 cm³/g (ISO 307, 1157, 1628)
- Water Absorption at Saturation (23°C): 8–9% (similar to ISO 62)
- Moisture Absorption at Equilibrium (23°C/50% RH): 2.5–3.1% (similar to ISO 62)
Mechanical Properties
- Tensile Modulus: 3000 MPa (dry) / 1100 MPa (conditioned) (ISO 527-1/-2)
- Yield Stress: 85 MPa (dry) / 50 MPa (conditioned) (ISO 527-1/-2)
- Yield Strain (50 mm/min): 4.4% (dry) / 20% (conditioned) (ISO 527-1/-2)
- Stress at Break: 50 MPa (dry) / 67 MPa (conditioned) (ISO 527-1/-2)
- Strain at Break: 30% (dry) / >200% (conditioned) (ISO 527-1/-2)
- Flexural Modulus: 2900 MPa (ISO 178)
- Charpy Notched Impact Strength (23°C): 6 kJ/m² (dry) / 20 kJ/m² (conditioned) (ISO 179/1eA)
- Charpy Notched Impact Strength (-30°C): 5 kJ/m² (dry) (ISO 179/1eA)
- Izod Notched Impact Strength (23°C): 5.5 kJ/m² (ISO 180/A)
- Izod Notched Impact Strength (-30°C): 6 kJ/m² (ISO 180/A)
Impact Properties
- Charpy Notched Impact Strength, 23°C: 6 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): 75°C (ISO 75-1/-2)
- Deflection Temperature Under Load (HDT B, 0.45 MPa): 220°C (ISO 75-1/-2)
- Max Service Temperature (Short Cycle): 200°C
- Temperature Index (50% Tensile Strength, 5000h): 130°C (IEC 60216)
- Coefficient of Linear Thermal Expansion (23°C–55°C, longitudinal): 98×10−6 K−198 \times 10^{-6}\, \mathrm{K}^{-1} (ISO 11359-1/-2)
- Thermal Conductivity: 0.33 W/(m·K) (DIN 52612-1)
- Specific Heat Capacity: 1700 J/(kg·K)
Electrical Properties
- Relative Permittivity (1 MHz): 3.2 (dry) / 5 (conditioned) (IEC 62631-2-1)
- Dissipation Factor (1 MHz): 250(E-4) (dry) / 2000(E-4) (conditioned) (IEC 62631-2-1)
- Volume Resistivity: 1E13 (dry) / 1E9 (conditioned) (IEC 62631-3-1)
Flame Characteristics
- UL94 Flammability Rating (Thickness Tested):
- 0.75 mm: V-2 (IEC 60695-11-10)
- 1.5 mm: V-2 (IEC 60695-11-10)
- 3.0 mm: V-2 (IEC 60695-11-10)
- Glow-Wire Flammability Index (GWFI): 960°C (0.5 mm, 0.75 mm, 1.5 mm, 3.0 mm) (IEC 60695-2-12)
Processing Guide
- Melt Temperature (Injection Molding/Extrusion): 280–300°C
- Mold Temperature (Injection Molding): 60–80°C
- Melt Volume Rate (MVR) at 275°C/5 kg: 100 cm³/10 min (ISO 1133)
- Molding Shrinkage Parallel/Normal: 1.50% / 1.80% (ISO 294-4)
Features & Benefits
Fast Molding & Flowability
This material ensures rapid molding cycles and outstanding flowability, allowing for precise, efficient production of complex parts. It reduces downtime and enhances productivity, especially for manufacturers with tight production schedules or intricate designs.
Exceptional Heat Resistance
Ultramid® A3W resists thermal aging, maintaining its mechanical strength even under prolonged exposure to high temperatures. This is crucial for under-the-hood automotive parts or electrical components subjected to continuous heat.
Durability Against Oils
Designed to withstand oil exposure, Ultramid® A3W ensures reliable performance in mechanical applications such as gears, bearings, and connectors.
Use & Applications
- Automotive Industry: Perfect for under-the-hood components like bearings, gear wheels, and cable harness connectors.
- Electrical & Electronics: for coil formers, switch housings, and other electrically sensitive applications.
- Mechanical Components: Bearings, bearing cages, gears, and other precision-engineered parts.