FDM PAHT-CF vs. Plastic Polypropylene

Compare FDM PAHT-CF vs. Plastic Polypropylene strength, stiffness, weight and thermal properties.

Plastic PolypropyleneBulk polymer (molded or machined)

Mechanical	FDM PAHT-CF	Plastic Polypropylene
Yield strength	not given (tensile used)	33MPa1
Ultimate tensile strength	92MPa2	not stated (yield given)
Flexural strength	125MPa2	not sourced
Elongation at break	8.4%2	not sourced
Young's modulus (stiffness)	3.86GPa22.66x stiffer	1.45GPa1
Density	1,060kg/m³2	900kg/m³118% lighter
Strength to weight	86.8kN·m/kg2.37x higher	36.7kN·m/kg
Stiffness to weight	3.64MN·m/kg2.26x higher	1.61MN·m/kg
Poisson's ratio	not sourced	base material0.423
Shear modulus	not sourced	0.511GPa
Bulk modulus	not sourced	3.02GPa
Speed of sound	1,908m/s1.5x faster	1,269m/s

Stiffness against densityHigher and further left: stiffer for its weight

Strength against densityHigher and further left: stronger for its weight

Thermal	FDM PAHT-CF	Plastic Polypropylene
Thermal conductivity	not sourced	base material0.17–0.22W/m·K3
Thermal expansion	not sourced	base material80–100µm/m·K3
100 mm part over a 50 °C swing	not sourced	450µm growth
Specific heat	not sourced	not sourced
Heats up and cools (diffusivity)	not sourced	not sourced
Thermal shock resistance	not sourced	28.6W/m
Melting point	225°C2	not sourced
Glass transition	70°C2	not sourced
Max service temperature	HDT 1.8 MPa170°C2	HDT 0.45 MPa90°C1

Thermal conductivity against densityHigher and further left: spreads more heat for its weight

Thermal expansion against thermal conductivityLower and further right: warps less when heated

Try it on a partA bracket to run stress or thermal on, free in your browser	Open in LessCAD	Open in LessCAD

Sources3 documents: LyondellBasell, Bambu Lab, INEOS Olefins & Polymers USA

FDM PAHT-CF: 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.
Plastic Polypropylene: LyondellBasell Moplen HP501H polypropylene homopolymer (general purpose), typical ISO values

1
Moplen HP501H Product DataLyondellBasellPlastic Polypropylene · Yield strength: typical, tensile stress at yield ISO 527Plastic Polypropylene · Young's modulus (stiffness): typical, tensile modulus ISO 527Plastic Polypropylene · Density: typical, 23 °C ISO 1183-1Plastic Polypropylene · Max service temperature: HDT 0.45 MPa (ISO 75B), unannealed
2
Bambu PAHT-CF Technical Data Sheet, V3.0Bambu LabFDM PAHT-CF · Ultimate tensile strength: typicalFDM PAHT-CF · Flexural strength: typicalFDM PAHT-CF · Elongation at break: typicalFDM PAHT-CF · Young's modulus (stiffness): typicalFDM PAHT-CF · Density: typicalFDM PAHT-CF · Melting point: typicalFDM PAHT-CF · Glass transition: typicalFDM PAHT-CF · Max service temperature: HDT 1.8 MPa
3
Typical Engineering Properties of PolypropyleneINEOS Olefins & Polymers USAarchived copyPlastic Polypropylene · Poisson's ratio: base material: polypropylene homopolymer family (INEOS Olefins & Polymers USA, Typical Engineering Properties of Polypropylene)Plastic Polypropylene · Thermal conductivity: base material: polypropylene homopolymer family (INEOS Olefins & Polymers USA, Typical Engineering Properties of Polypropylene)Plastic Polypropylene · Thermal expansion: base material: polypropylene homopolymer family (INEOS Olefins & Polymers USA, Typical Engineering Properties of Polypropylene)

Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "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

Mechanical

Is FDM PAHT-CF stronger than Plastic Polypropylene?

FDM PAHT-CF is stronger: its tensile strength is 92 MPa against yield strength 33 MPa for Plastic Polypropylene (2.79x).

Which is lighter, FDM PAHT-CF or Plastic Polypropylene?

Plastic Polypropylene is lighter: 900 kg/m³ against 1,060 kg/m³ for FDM PAHT-CF.

Which is stiffer, FDM PAHT-CF or Plastic Polypropylene?

FDM PAHT-CF is stiffer: Young's modulus 3.86 GPa against 1.45 GPa for Plastic Polypropylene, 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 Polypropylene?

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 Polypropylene
Stiff rod or tie (tension)	lighter	2.26x heavier
Stiff beam (bending)	lighter	39% heavier
Stiff panel or plate	lighter	18% heavier
Strong rod or tie	lighter	2.37x heavier
Strong beam	lighter	1.68x heavier
Strong panel or plate	lighter	42% 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).