FDM PAHT-CF vs. Plastic ABS (bulk/injection)

Compare FDM PAHT-CF vs. Plastic ABS (bulk/injection) strength, stiffness, weight and thermal properties.

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Plastic ABS (bulk/injection)Bulk polymer (molded or machined)

Mechanical
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Yield strength	not given (tensile used)	45MPasourcetypical, tensile stress at yield 23 °C
Ultimate tensile strength	92MPasourcetypical	not sourced
Flexural strength	125MPasourcetypical	65MPasourcetypical, 23 °C
Elongation at break	8.4%sourcetypical	10%sourcenominal strain at break, 23 °C
Young's modulus (stiffness)	3.86GPasourcetypical1.68x stiffer	2.3GPasourcetypical
Density	1,060kg/m³sourcetypical	1,040kg/m³sourcetypical
Strength to weight	86.8kN·m/kg2.01x higher	43.3kN·m/kg
Stiffness to weight	3.64MN·m/kg1.65x higher	2.21MN·m/kg
Poisson's ratio	not sourced	0.39sourcetypical, ABS family (Covestro Part and Mold Design guide, Table 3-1)
Shear modulus	not sourced	0.827GPa
Bulk modulus	not sourced	3.48GPa
Speed of sound	1,908m/s	1,487m/s
Thermal
Thermal conductivity	not sourced	0.17W/m·Ksourcetypical
Thermal expansion	not sourced	80–110µm/m·Ksourcerange
100 mm part over a 50 °C swing	not sourced	475µm growth
Specific heat	not sourced	not sourced
Heats up and cools (diffusivity)	not sourced	not sourced
Thermal shock resistance	not sourced	21.4W/m
Melting point	225°Csourcetypical	not sourced
Glass transition	70°Csourcetypical	not sourced
Max service temperature	170°CsourceHDT 1.8 MPa	94°CsourceHDT 1.8 MPa (annealed 4 h/80 °C)
Values for	Bambu Lab PAHT-CF, TDS V3.0, printed specimens X-Y, dry state; nozzle 290 °C, bed 100 °C, 100 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing.	INEOS Styrolution Terluran GP-22 general-purpose injection-molding ABS, ISO typical values (TDS revision 08/01/2022)

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.

FDM PAHT-CF is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is FDM PAHT-CF stronger than Plastic ABS (bulk/injection)?

FDM PAHT-CF is stronger: its tensile strength is 92 MPa against yield strength 45 MPa for Plastic ABS (bulk/injection) (2.04x).

Which is lighter, FDM PAHT-CF or Plastic ABS (bulk/injection)?

Plastic ABS (bulk/injection) is lighter: 1,040 kg/m³ against 1,060 kg/m³ for FDM PAHT-CF.

Which is stiffer, FDM PAHT-CF or Plastic ABS (bulk/injection)?

FDM PAHT-CF is stiffer: Young's modulus 3.86 GPa against 2.3 GPa for Plastic ABS (bulk/injection), so the same part in FDM PAHT-CF deflects less under the same load.

Which is lighter for the same job, FDM PAHT-CF or Plastic ABS (bulk/injection)?

For the same stiffness or strength: FDM PAHT-CF is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.

Part that must be	FDM PAHT-CF	Plastic ABS (bulk/injection)
Stiff rod or tie (tension)	lighter	1.65x heavier
Stiff beam (bending)	lighter	27% heavier
Stiff panel or plate	lighter	17% heavier
Strong rod or tie	lighter	2.01x heavier
Strong beam	lighter	1.58x heavier
Strong panel or plate	lighter	40% heavier

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).

Among 59 materials

Stiffness against density

Strength against density