Materials / Compare

Copper C110 vs. PCB Board FR-4, 2 copper planes

Compare Copper C110 vs. PCB Board FR-4, 2 copper planes strength, stiffness, weight and thermal properties.

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Copper C110Wrought
PCB Board FR-4, 2 copper planesComposite
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Mechanical
Yield strength69MPasourcetypical, 0.5% extension under loadnot given (tensile used)
Ultimate tensile strength221MPasourcetypical246–385MPasourcethe bare laminate's (fr4-370hr), in-plane: cross direction .. length direction (ASTM D3039)
Elongation at break55%sourcetypical, 1 in. rodnot sourced
Young's modulus (stiffness)117GPasourcetypical21.9–25.8GPasourcethe bare laminate's (fr4-370hr), in-plane: cross direction .. length direction (ASTM D790-15e2); the copper planes are left out
Density8,913kg/m³sourcenominalnot sourced
Strength to weight7.74kN·m/kgnot sourced
Stiffness to weight13.1MN·m/kgnot sourced
Poisson's ratio0.34sourcereference value at room temperature (Wieland-K32 = Cu-ETP = C11000, rolled products)0.171–0.177sourcethe bare laminate's (fr4-370hr), in-plane: cross direction .. length direction
Shear modulus43.7GPa4.3x stiffer in shear10.2GPa
Bulk modulus122GPa12.2GPa
Speed of sound3,626m/snot sourced
Thermal
Thermal conductivity391W/m·Ksourcetypical, 20 °Cnot sourced
Thermal expansion16.9µm/m·Ksourcetypical, mean 20-100 °C13–14µm/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 swing84.5µm growth67.5µm growth25% less
Specific heat385J/kg·Ksourcetypical, 20 °Cnot sourced
Heats up and cools (diffusivity)114mm²/snot sourced
Thermal shock resistance8,992W/mnot sourced
Melting point1,065–1,083°Csourcesolidus-liquidusnot sourced
Values forC11000 ETP copper, annealed to 0.050 mm grain size (OS050), 1 in. rod, copper.org typical valuesA 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.

Questions

Is Copper C110 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 yield strength 69 MPa for Copper C110 (4.57x).

Which is stiffer, Copper C110 or PCB Board FR-4, 2 copper planes?

Copper C110 is stiffer: Young's modulus 117 GPa against 23.9 GPa for PCB Board FR-4, 2 copper planes, so the same part in Copper C110 deflects less under the same load.

Which expands less with temperature?

PCB Board FR-4, 2 copper planes expands less: 13.5 µm/m·K against 16.9 µm/m·K for Copper C110.

Among 73 materials

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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 C360GlassSteel 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 PAHT-CFFDM 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 GF30Copper C110
Strength against density

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