Structure — dry environments
PA6-CF20 3D Printing
Carbon-fiber nylon 6, the dry-duty workhorse for fixtures and mechanisms.
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A palm-sized bracket in PA6-CF20 runs about $20.49 plus shipping.
Your files stay private. You keep 100% of your IP.1 ISO 527, X-Y orientation, 23 °C.
2 ISO 178, X-Y orientation, 23 °C.
3 ISO 75, 0.45 MPa.
4 ISO 179-1/1eU, unnotched, X-Y orientation, 23 °C.
A carbon fiber reinforced nylon 6 that is very stiff, strong, and heat tolerant when dry. It is hygroscopic: absorbed moisture softens the matrix and lowers its stiffness and strength, so its behavior depends on the humidity it works in. It resists oils, greases, and fuels but is weakened by strong acids and prolonged hot water.
PA6-CF20 printed-part datasheet
Mechanical (dry)
| Tensile strength (X-Y) | 102 MPaISO 527 |
| Young’s modulus (X-Y) | 4,430 MPaISO 527 |
| Bending modulus (X-Y) | 5,460 MPaISO 178 |
| Elongation at break (X-Y) | 5.8%ISO 527 |
| Charpy impact, unnotched (X-Y) | 40.3 kJ/m² (dry)ISO 179 |
Wet vs dry (moisture-saturated)
| Tensile strength (X-Y), dry → wet | 109.3 MPa → 54.7 MPa (~50% loss)ISO 527 |
| Tensile strength (Z), dry → wet | 54.0 MPa → 25.5 MPaISO 527 |
| Young’s modulus, dry → wet | 8,636 MPa → 2,508 MPa (~71% loss)ISO 527 |
| Bending modulus (X-Y), dry → wet | 7,038 MPa → 2,286 MPaISO 178 |
| Charpy impact, notched, dry → wet | 11.0 → 35.6 kJ/m² (toughens when wet)ISO 179 |
Thermal
| HDT @ 0.45 MPa | 186 °C (dry, annealed)ISO 75 |
| HDT @ 1.8 MPa | 164 °C (dry, annealed)ISO 75 |
Physical
| Density | 1.17 g/cm³ISO 1183 |
Manufacturer printed-specimen values. Not certified design allowables.