Yuntianhua® GF-25 POM
Plastic Granules
Yuntianhua® GF-25 Pellets 25% Glass Fiber Reinforced POM Copolymer
Yuntianhua® GF-25 is a 25% glass fiber reinforced POM copolymer. It offers high stiffness, 130 MPa tensile strength, and 160°C HDT. It provides low shrinkage, improved creep resistance, and stable performance for gears, valves, bearings, and precision molded parts.
Typical property data
Physical Properties
- Density: 1.6 g/cm³ (ISO 1183)
- Melt Mass-Flow Rate, MFR: 6 g/10 min at 190°C / 2.16 kg (ISO 1133)
- Water Absorption: 0.6% after 24 hr at 23°C (ISO 62)
Mechanical Properties
- Tensile Stress at Yield: 130 MPa (ISO 527-2)
- Tensile Modulus: 8000 MPa (ISO 527-2)
- Strain at Break: 2.5% (ISO 527-2)
- Flexural Strength: 180 MPa (ISO 178)
- Flexural Modulus: 7500 MPa (ISO 178)
- Charpy Notched Impact Strength: 7.0 kJ/m² (ISO 179/1eA)
Thermal Properties
- Heat Deflection Temperature: 160°C at 1.8 MPa, unannealed (ISO 75)
Flame Characteristics
- UL Flame Rating: HB class (UL 94)
Injection Molding Conditions
- Material Drying: 100–120°C for 2–4 hours
- Nozzle Temperature: 180–210°C
- Front Cylinder Temperature: 180–210°C
- Center Cylinder Temperature: 170–200°C
- Rear Cylinder Temperature: 160–180°C
- Melt Temperature: 180–210°C
- Mold Temperature: 60–90°C
- Mold Temperature for Precision Parts: Up to 120°C
- Injection Pressure: 50–100 MPa
- Holding Pressure: 30–80 MPa
- Back Pressure: 0–0.5 MPa
- Screw Rotational Speed: 50–120 rpm
Use & Applications
- Oil box cover
- Radiator cover
- Gear
- Bearing
- Accelerator pedal
- Conveyor belt
- Valve
- Cam
- Impeller