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FDM PAHT-CF vs. PCB Board FR-4, 2 copper planes

Compare FDM PAHT-CF vs. PCB Board FR-4, 2 copper planes strength, stiffness, weight and thermal properties.

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FDM PAHT-CF3D printed (FDM)
PCB Board FR-4, 2 copper planesComposite
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Mechanical
Yield strengthnot given (tensile used)not given (tensile used)
Ultimate tensile strength92MPasourcetypical246–385MPasourcethe bare laminate's (fr4-370hr), in-plane: cross direction .. length direction (ASTM D3039)
Flexural strength125MPasourcetypicalnot sourced
Elongation at break8.4%sourcetypicalnot sourced
Young's modulus (stiffness)3.86GPasourcetypical21.9–25.8GPasourcethe bare laminate's (fr4-370hr), in-plane: cross direction .. length direction (ASTM D790-15e2); the copper planes are left out
Density1,060kg/m³sourcetypicalnot sourced
Strength to weight86.8kN·m/kgnot sourced
Stiffness to weight3.64MN·m/kgnot sourced
Poisson's rationot sourced0.171–0.177sourcethe bare laminate's (fr4-370hr), in-plane: cross direction .. length direction
Shear modulusnot sourced10.2GPa
Bulk modulusnot sourced12.2GPa
Speed of sound1,908m/snot sourced
Thermal
Thermal conductivitynot sourcednot sourced
Thermal expansionnot sourced13–14µm/m·Ksourcethe bare laminate's (fr4-370hr), in-plane X/Y-axis, below Tg (IPC-TM-650 2.4.24C)
100 mm part over a 50 °C swingnot sourced67.5µm growth
Specific heatnot sourcednot sourced
Heats up and cools (diffusivity)not sourcednot sourced
Thermal shock resistancenot sourcednot sourced
Melting point225°Csourcetypicalnot sourced
Glass transition70°Csourcetypicalnot sourced
Max service temperature170°CsourceHDT 1.8 MPanot sourced
Values forBambu 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.A whole circuit board read as one orthotropic plate: the JEDEC high-K thermal test board (JESD51-7, "2s2p"), 0.062 in (1.575 mm) thick with two internal solid copper planes 0.0014 in (1 oz) thick, as Texas Instruments SZZA017A Table 1 gives it. Copper C110 and the Isola 370HR laminate from this library; the layers conduct in parallel along the board and in series through it (boardStackup.ts). Its two 0.0028 in trace layers cover little of the board and are left out; vias are ignored. Mechanical values are the bare laminate's.

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 PCB Board FR-4, 2 copper planes?

PCB Board FR-4, 2 copper planes is stronger: its tensile strength is 315 MPa against 92 MPa for FDM PAHT-CF (3.43x).

Which is stiffer, FDM PAHT-CF or PCB Board FR-4, 2 copper planes?

PCB Board FR-4, 2 copper planes is stiffer: Young's modulus 23.9 GPa against 3.86 GPa for FDM PAHT-CF, so the same part in PCB Board FR-4, 2 copper planes deflects less under the same load.

Among 73 materials

1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelPCB Laminate FR-4SiliconCeramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30FDM PAHT-CF
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM HIPSSLA Resin Tough 2000SLA Resin Elastic 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelBrickPCB Laminate FR-4SiliconCeramic Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30FDM PAHT-CF
Strength against density

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