Materials / Compare

Plastic PBT GF30 vs. Wood

Compare Plastic PBT GF30 vs. Wood strength, stiffness, weight and thermal properties.

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Plastic PBT GF30Bulk polymer (molded or machined)
WoodNatural
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Mechanical
Yield strengthnot given (tensile used)not given (tensile used)
Ultimate tensile strength140MPasourcestress at break, 23 °C99MPasourcemodulus of rupture (no direct tensile value)
Compressive strengthnot sourced46.6MPasourcecompression parallel to grain (maximum crushing strength), 12% MC
Flexural strength210MPasourcetypical, 23 °C99MPasourcemodulus of rupture (static bending), 12% MC
Elongation at break3%sourcestrain at break, 23 °Cnot sourced
Young's modulus (stiffness)9.8GPasourcetypical, 23 °C12.5GPasourcebending MOE, parallel to grain
Density1,530kg/m³sourcetypicalnot sourced
Strength to weight91.5kN·m/kgnot sourced
Stiffness to weight6.41MN·m/kgnot sourced
Poisson's rationot sourced0.35sourcemu_LR (red oak group, ~12% MC)
Shear modulusnot sourced4.63GPa
Bulk modulusnot sourced13.9GPa
Speed of sound2,531m/snot sourced
Thermal
Thermal conductivity0.27W/m·Ksourcetypical (DIN 52612-1)0.18W/m·Ksourceacross grain, 12% MC (Table 4-7, approximate)
Thermal expansion25µm/m·Ksourcelongitudinal (flow), mean 23-55 °C3.1–4.5µm/m·Ksourceparallel to grain, ovendry wood, range across species
100 mm part over a 50 °C swing125µm growth19µm growth6.58x less
Specific heat1,050J/kg·Ksourcetypical, 23 °C1,700J/kg·Ksourcesolid wood (all species), 12% MC, 27 C
Heats up and cools (diffusivity)0.168mm²/snot sourced
Thermal shock resistancenot sourced244W/m
Melting point223°CsourceDSC (ISO 11357)not sourced
Max service temperature205°CsourceHDT 1.8 MPanot sourced
Values forBASF Ultradur B 4300 G6 (PBT, 30% glass fibre), injection moulding grade; product information sheet 09/2026, typical values for uncoloured product at 23 °C.Northern red oak (Quercus rubra), clear straight-grained specimens at 12% MC, parallel to grain unless stated; USDA FPL Wood Handbook FPL-GTR-282 (2021) Ch. 4 and Ch. 5

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 Plastic PBT GF30 stronger than Wood?

Plastic PBT GF30 is stronger: its tensile strength is 140 MPa against 99 MPa for Wood (41%).

Which is stiffer, Plastic PBT GF30 or Wood?

Wood is stiffer: Young's modulus 12.5 GPa against 9.8 GPa for Plastic PBT GF30, so the same part in Wood deflects less under the same load.

Which conducts heat better, Plastic PBT GF30 or Wood?

Plastic PBT GF30 conducts heat better: 0.27 W/m·K against 0.18 W/m·K for Wood.

Which expands less with temperature?

Wood expands less: 3.8 µm/m·K against 25 µm/m·K for Plastic PBT GF30.

Among 72 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 PAHT-CFFDM 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 PPS GF40Plastic LCP GF30Plastic PBT GF30
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 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 PPS GF40Plastic LCP GF30Plastic PBT GF30
Strength against density

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