PA66 Ascend R533H
PA66 Ascend R533H Resin
Material Introduction: PA66 Ascend R533H is a high‑performance 33% glass‑fiber‑reinforced heat‑stabilized PA66 engineering plastic. It delivers high strength, high rigidity, good heat resistance and excellent dimensional stability, together with favorable electrical insulation, hydrolysis resistance and HB‑grade flame retardancy. It has obtained FDA certification and approvals from multiple automotive manufacturers.
Main Applications
Automotive industry: Under‑hood automotive components, gears, housings and other auto‑parts, qualified for GM, Ford, Chrysler, Delphi, Valeo and other automotive specifications.
Mechanical parts / Industrial accessories: Gears, power‑tool components, engineering‑industrial fittings and outdoor‑application parts.
Other fields: Electrical appliance housings.
Performance Parameters
| Performance Category | Test Condition / Standard | Unit | Typical Value | Remarks & Interpretation |
|---|---|---|---|---|
| Physical Properties | ||||
| Density | ISO 1183 | g/cm³ | 1.40 | 33% glass‑fiber reinforced heat‑stabilized grade |
| Water Absorption (24hr,23℃) | ISO 62 | % | 0.80 | ‑ |
| Equilibrium Water Absorption (23℃,50%RH) | ISO 62 | % | 1.70 | Moisture‑sensitive polyamide |
| Molding Shrinkage (flow direction) | ISO 294‑4 | % | 0.40 | ‑ |
| Molding Shrinkage (cross‑flow direction) | ISO 294‑4 | % | 0.90 | Anisotropic shrinkage for glass‑filled grade |
| Mechanical Properties | ||||
| Tensile Strength at Break (23℃) | ISO 527‑2 | MPa | 203‑205 (dry) / 145 (wet) | Property drops after moisture absorption |
| Elongation at Break (23℃) | ISO 527‑2 | % | 3.0 (dry) / 5.0 (wet) | Toughened after moisture absorption |
| Tensile Modulus (23℃) | ISO 527‑2 | MPa | 10600 (dry) / 7900 (wet) | ‑ |
| Flexural Strength (23℃) | ISO 178 | MPa | 288‑290 (dry) / 200 (wet) | ‑ |
| Flexural Modulus (23℃) | ISO 178 | MPa | 10200 (dry) / 6500 (wet) | ‑ |
| Charpy Notched Impact Strength (23℃) | ISO 179/1eA | kJ/m² | 11 (dry) / 14 (wet) | ‑ |
| Charpy Un‑notched Impact Strength (23℃) | ISO 179/1eU | kJ/m² | 80 (dry) / 90 (wet) | ‑ |
| Thermal Properties | ||||
| HDT @1.8 MPa | ISO 75‑2/A | °C | 250 | High‑heat‑resistance reinforced PA66 |
| HDT @0.45 MPa | ISO 75‑2/B | °C | 260 | ‑ |
| Melting Point | ISO 11357‑3 | °C | 260 | ‑ |
| Coefficient of Linear Thermal Expansion (flow) | ISO 11359‑2 | cm/cm/°C | 2.1E‑5 | ‑ |
| Coefficient of Linear Thermal Expansion (cross‑flow) | ISO 11359‑2 | cm/cm/°C | 1.1E‑4 | ‑ |
| Electrical Properties | ||||
| Volume Resistivity | IEC 60093 | Ω·cm | 1.0E+13 | ‑ |
| Dielectric Strength (1.00 mm) | IEC 60243‑1 | kV/mm | 20 | ‑ |
| Comparative Tracking Index (CTI) | IEC 60112 | V | 250‑399 | ‑ |
| Flammability | ||||
| UL94 Rating (0.75 mm / 1.50 mm / 3.00 mm) | ‑ | ‑ | HB | Non‑flame‑retardant grade |
| GWFI | IEC 60695‑2‑12 | °C | 675 (0.75mm/1.5mm/3.0mm) | ‑ |
Injection Molding Parameters
| Processing Item | Recommended Range / Condition | Notes & Explanations |
|---|---|---|
| Drying Treatment | Hot‑air drying at 80 ℃ for 4 h; extend drying time or adopt vacuum drying under high‑humidity conditions; target moisture content＜0.2% | Critical operation. PA66 is prone to moisture‑induced hydrolysis. Excess moisture causes bubbles, silver streaks and severe mechanical‑property loss. Use immediately after drying or seal and keep warm properly. |
| Melt Temperature | 285‑305 ℃; barrel rear/middle/front/nozzle:280‑310 ℃ | Fine‑tune per equipment and part geometry. Avoid temperature＞310 ℃ or long‑residence‑time to prevent material degradation. |
| Mold Temperature | 65‑95 ℃ (149‑203℉) | Proper mold temperature delivers good crystallinity, surface gloss and mechanical performance. |
| Injection Pressure | Adjust per product and mold design | Higher injection pressure may be required for glass‑fiber‑reinforced grade. |
| Injection Speed | Medium‑high speed | Relatively fast speed benefits filling; good mold venting is required. |
| Back Pressure | ‑ | ‑ |
| Screw Speed | ‑ | ‑ |
| Runner & Gate | ‑ | ‑ |
| Maximum Recycled Material Ratio Suggested | 25% | Excessive regrind addition will degrade material performance. |
Disclaimer: All above data is for reference only.
