Materials / Compare
Brick vs. Plastic Nylon PA66
Compare Brick vs. Plastic Nylon PA66 strength, stiffness, weight and thermal properties.
| Try it on a partA sample part to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | not given (tensile used) | 85MPasourcetypical, dry |
| Ultimate tensile strength | 5.1MPasourcemodulus of rupture (no direct tensile value) | not sourced |
| Compressive strength | 77.9MPasourcemean unit compressive strength, solid extruded brick (survey mean; SD 30.8 MPa) | not sourced |
| Elongation at break | not sourced | 30%sourcenominal strain at break, dry |
| Young's modulus (stiffness) | not sourced | 3GPasourcetypical, dry |
| Density | 2,082kg/m³sourceface brick density row used for k (BIA notes most fired clay brick 120-130 lb/ft3) | 1,130kg/m³sourcetypical |
| Strength to weight | 2.45kN·m/kg | 75.2kN·m/kg30.7x higher |
| Stiffness to weight | not sourced | 2.65MN·m/kg |
| Poisson's ratio | not sourced | 0.4sourcebase material: unfilled polyamide (PA), conditioned, maker design-guide family value (Covestro Table 3-1) |
| Shear modulus | not sourced | 1.07GPa |
| Bulk modulus | not sourced | 5GPa |
| Speed of sound | not sourced | 1,629m/s |
| Thermal | ||
| Thermal conductivity | 0.92–1.12W/m·Ksourcerange for 130 lb/ft3 face brick (ASHRAE 2013 via BIA) | 0.33W/m·Ksourcetypical |
| Thermal expansion | 7.2µm/m·KsourceTMS Code average coefficient, clay/shale unit masonry | 98µm/m·Ksourcelongitudinal, 23-55 °C |
| 100 mm part over a 50 °C swing | 36µm growth13.6x less | 490µm growth |
| Specific heat | 837J/kg·Ksourcevalue used in BIA heat-capacity sample calculation | 1,700J/kg·Ksourcetypical |
| Heats up and cools (diffusivity) | 0.585mm²/s3.41x faster | 0.172mm²/s |
| Thermal shock resistance | not sourced | 57.2W/m |
| Melting point | not sourced | 260°CsourceDSC |
| Max service temperature | not sourced | 101°CsourceIEC 60216 temperature index, 20000 h |
| Values for | Solid extruded clay/shale brick units (BIA 1993 manufacturer survey, TN 3A 2024); face brick of 130 lb/ft3 for thermal properties (BIA TN 4, from ASHRAE 2013); CTE is the TMS Code value for clay/shale masonry | BASF Ultramid A3K (PA66, unreinforced injection-moulding grade), Product Information 02/2026, dry values (ISO methods) |
Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Questions
Is Brick stronger than Plastic Nylon PA66?
Plastic Nylon PA66 is stronger: its yield strength is 85 MPa against tensile strength 5.1 MPa for Brick (16.7x).
Which is lighter, Brick or Plastic Nylon PA66?
Plastic Nylon PA66 is lighter: 1,130 kg/m³ against 2,082 kg/m³ for Brick.
Which is lighter for the same job, Brick or Plastic Nylon PA66?
For the same stiffness or strength: Plastic Nylon PA66 is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Brick | Plastic Nylon PA66 |
|---|---|---|
| Strong rod or tie | 30.7x heavier | lighter |
| Strong beam | 12x heavier | lighter |
| Strong panel or plate | 7.52x heavier | lighter |
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).
Which conducts heat better, Brick or Plastic Nylon PA66?
Brick conducts heat better: 1.02 W/m·K against 0.33 W/m·K for Plastic Nylon PA66.
Which expands less with temperature?
Brick expands less: 7.2 µm/m·K against 98 µm/m·K for Plastic Nylon PA66.