PA-MXD6 GF50
Semi-aromatic polyamide (meta-xylylenediamine + adipic acid) reinforced with 50% glass fiber. Exceptional stiffness (18–20 GPa) and strength (250–280 MPa) approaching die-cast aluminum. Very low water absorption (0.15%) compared to PA66 — mechanical properties remain stable in humid conditions. Excellent barrier properties (O2 and CO2). Trade names: Reny (Mitsubishi Gas Chemical), Ixef (Solvay). Used for automotive structural brackets, metal-replacement components, power tool housings and precision mechanical parts.
Chemical composition comparison (wt%)
Side-by-side: PA-MXD6 GF50 (COMPOSITION) (ISO 16396) vs ASTM
| Element | PA-MXD6 GF50 (COMPOSITION) | ASTM | Overlap |
|---|---|---|---|
| Polyamide MXD6 (Base Polymer) | 48–52% | — | — |
| Glass Fiber Reinforcement | 48–52% | — | — |
Mechanical properties
Dry (as molded)
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 250–280 | MPa |
| Tensile Modulus | 18000–20000 | MPa |
| Elongation at Break | 2–3 | % |
| Charpy Impact (notched) | 8–12 | kJ/m² |
General
| Property | Value | Unit |
|---|---|---|
| Density | 1.68–1.72 | g/cm³ |
| Melting Point | 237–243 | °C |
| HDT/A (1.8 MPa) | 230–245 | °C |
| Water Absorption (24h) | 0.1–0.18 | % |
| Glass Fiber Content | 50 | % |
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