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Coefficients of Linear Thermal Expansion |
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| Material | Linear Temperature Expansion Coefficient
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per degree C x 10-6
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per degree F x 10-6 | | ABS (Acrylonitrile butadiene styrene) thermoplastic | 73.8 | 41 | | ABS -glass fiber-reinforced | 30.4 | 17 | | Acetals | 106.5 | 59.2 | | Acetal - glass fiber-reinforced | 39.4 | 22 | | Acrylic | 75 | 42 | | Alumina | 5.4 | 3.0 | | Aluminum | 24 | 13 | | Amber | 50 - 60 | | | Antimony | 10.4 | 5.8 | | Arsenic | 4.7 | 2.6 | | Bakelite, bleached | 22 | | | Barium | 20.6 | 11.4 | | Barium ferrite | 10 | 5.6 | | Benzocyclobutene | 42 | 23.3 | | Beryllium | 11.5 | 6.4 | | Bismuth | 13 | 7.3 | | Brass | 19 | 11 | | Brick masonry | 5.5 | 3.1 | | Bronze | 18.0 | 10.0 | | Cadmium | 30 | 16.8 | | Calcium | 22.3 | 12.4 | | Cast Iron Gray | 10.8 | 6.0 | | Caoutchouc | 66 - 69 | | | Celluloid | 100 | | | Cellulose acetate (CA) | 130 | 72.2 | | Cellulose acetate butynate (CAB) | 96 - 171 | 80 - 95 | | Cellulose nitrate (CN) | 80 - 120 | 44 - 67 | | Cement | 10.0 | 6.0 | | Cerium | 5.2 | 2.9 | | Chlorinated polyether | 80 | 44 | | Chlorinated polyvinylchloride (CPVC) | 66.6 | 37 | | Chromium | 6.2 | 3.4 | | Clay tile structure | 5.9 | 3.3 | | Cobalt | 12 | 6.7 | | Concrete | 14.5 | 8.0 | | Concrete structure | 9.8 | 5.5 | | Constantan | 18.8 | 10.4 | | Copper | 17 | 9.4 | | Copper, Beryllium 25 | 17.8 | 9.9 | | Corundum, sintered | 6.5 | 3.6 | | Cupronickel 30% | 16.2 | 9 | | Diamond (Carbon) | 1.18 | 0.66 | | Duralumin | 23 | 12.8 | | Dysprosium | 9.9 | 5.5 | | Ebonite | 76.6 | 42.8 | | Epoxy, cast resins & compounds, unfilled | 45 - 65 | 25 - 36 | | Erbium | 12.2 | 6.8 | | Ethylene ethyl acrylate (EEA) | 205 | 113.9 | | Ethylene vinyl acetate (EVA) | 180 | 100 | | Europium | 35 | 19.4 | | Fluoroethylene propylene (FEP) | 135 | 75 | | Fluorspar, CaF2 | 19.5 | | | Gadolinium | 9 | 5 | | Germanium | 6.1 | 3.4 | | German silver | 18.4 | 10.2 | | Glass, hard | 5.9 | 3.3 | | Glass, Pyrex | 4.0 | 2.2 | | Glass, plate (ordinary) | 9.0 | 5.0 | | Gold | 14 | 7.8 | | Gold - copper | 15.5 | | | Gold - platinum | 15.2 | | | Granite | 7.9 | 4.4 | | Graphite, pure (Carbon) | 2 - 6 | 1.1 - 3.4 | | Gunmetal | 18 | 10 | | Gutta percha | 198 | | | Hafnium | 5.9 | 3.3 | | Hard alloy K20 | 6 | 3.3 | | Hastelloy C | 11.3 | 6.3 | | Holmium | 11.2 | 6.2 | | Ice, 0oC water | 51 | 28.3 | | Inconel | 12.6 | 7.0 | | Indium | 33 | 18.3 | | Invar | 1.5 | 0.8 | | Iridium | 6.4 | 3.6 | | Iron, pure | 12.0 | 6.7 | | Iron, cast | 10.4 | 5.9 | | Iron, forged | 11.3 | 6.3 | | Kapton | 20 | 11.1 | | Lanthanum | 12.1 | 6.7 | | Lead | 28.0 | 15.1 | | Limestone | 8 | 4.4 | | Lithium | 46 | 25.6 | | Lutetium | 9.9 | 5.5 | | Macor | 9.3 | 5.2 | | Magnalium | 23.8 | | | Magnesium | 25 | 14 | | Manganese | 22 | 12.3 | | Manganin | 18.1 | | | Marble | 5.5 - 14.1 | 3.1 - 7.9 | | Masonry | 4.7 - 9.0 | 2.6 - 5.0 | | Mercury | 61 | 33.9 | | Mica | 3 | 1.7 | | Molybdenum | 5 | 2.8 | | Monel metal | 13.5 | 7.5 | | Mortar | 7.3 - 13.5 | 4.1-7.5 | | Neodymium | 9.6 | 5.3 | | Nickel | 13.0 | 7.2 | | Niobium (Columbium) | 7 | 3.9 | | Nylon, general purpose | 72 | 40 | | Nylon, Type 11, molding and extruding compound | 100 | 55.6 | | Nylon, Type 12, molding and extruding compound | 80.5 | 44.7 | | Nylon, Type 6, cast | 85 | 47.2 | | Nylon, Type 6/6, molding compound | 80 | 44.4 | | Oak, perpendicular to the grain | 54 | 30 | | Osmium | 5 | 2.8 | | Palladium | 11.8 | 6.6 | | Paraffin | 106 - 480 | | | Phenolic resin without fillers | 60 - 80 | 33 - 44.4 | | Phosphor bronze | 16.7 | 9.3 | | Plaster | 16.4 | 9.2 | | Plastics | 40 - 120 | 22 - 67 | | Platinum | 9.0 | 5.0 | | Plutonium | 54 | 30.2 | | Polyacrylonitrile | 70 | 38.5 | | Polyallomer | 91.5 | 50.8 | | Polyamide (PA) | 110 | 61.1 | | Polybutylene (PB) | 130 | 72 | | Polycarbonate (PC) | 70.2 | 39 | | Polycarbonate - glass fiber-reinforced | 21.5 | 12 | | Polyester | 123.5 | 69 | | Polyester - glass fiber-reinforced | 25 | 14 | | Polyethylene (PE) | 200 | 111 | | Polyethylene (PE) - High Molecular Weight | 108 | 60 | | Polyethylene terephthalate (PET) | 59.4 | 33 | | Polyphenylene - glass fiber-reinforced | 35.8 | 20 | | Polypropylene (PP), unfilled | 100 - 200 | 56 - 112 | | Polypropylene - glass fiber-reinforced | 32 | 18 | | Polystyrene (PS) | 70 | 38.9 | | Polysulfone (PSO) | 55.8 | 31 | | Polyurethane (PUR), rigid | 57.6 | 32 | | Polyvinyl chloride (PVC) | 50.4 | 28 | | Polyvinylidene fluoride (PVDF) | 127.8 | 71 | | Porcelain, Industrial | 6.5 | 3.6 | | Potassium | 83 | 46.1 | | Praseodymium | 6.7 | 3.7 | | Promethium | 11 | 6.1 | | Quartz | 0.77 - 1.4 | 0.43 - 0.79 |
| Quartz, fused |
0.59 |
0.33 |
| Rhenium | 6.7 | 3.7 | | Rhodium | 8 | 4.5 | | Rock salt | 40.4 | | | Rubber, hard | 77 | 42.8 | | Ruthenium | 9.1 | 5.1 | | Samarium | 12.7 | 7.1 | | Sandstone | 11.6 | 6.5 | | Sapphire | 5.3 | 2.9 | | Scandium | 10.2 | 5.7 | | Selenium | 3.8 | 2.1 | | Silicon | 3 | 1.7 | | Silicon Carbide | 2.77 | 1.5 | | Silver | 18 | 10 | | Sitall | 0.15 | 0.08 | | Slate | 10.4 | 5.8 | | Sodium | 70 | 39.1 | | Solder lead - tin, 50% - 50% | 24.0 | 13.4 | | Speculum metal | 19.3 | | | Steatite | 8.5 | 4.7 | | Steel | 13 | 7.2 | | Steel Stainless Austenitic (304) | 17.3 | 9.6 | | Steel Stainless Austenitic (310) | 14.4 | 8.0 | | Steel Stainless Austenitic (316) | 16.0 | 8.9 | | Steel Stainless Ferritic (410) | 9.9 | 5.5 | | Strontium | 22.5 | 12.5 | | Tantalum | 6.5 | 3.6 | | Tellurium | 36.9 | 20.5 | | Terbium | 10.3 | 5.7 | | Terne | 11.6 | 6.5 | | Thallium | 29.9 | 16.6 | | Thorium | 12 | 6.7 | | Thulium | 13.3 | 7.4 | | Tin | 23.4 | 13.0 | | Titanium | 8.6 | 4.8 | | Topas | 5 - 8 | | | Tungsten | 4.3 | 2.4 | | Uranium | 13.9 | 7.7 | | Vanadium | 8 | 4.5 | | Vinyl Ester | 16 - 22 | 8.7 - 12 | | Vulcanite | 63.6 | | | Wax | 2 - 15 | | | Wedgwood ware | 8.9 | | | Wood, fir | 3.7 | 2.1 | | Wood, parallel to grain | 3 | 1.7 | | Wood, across (perpendicular) to grain | 30 | 17 | | Wood, pine | 5 | 2.8 | | Ytterbium | 26.3 | 14.6 | | Yttrium | 10.6 | 5.9 | | Zinc | 29.7 | 16.5 | | Zirconium | 5.7 | 3.2 |
Thermal Expansion Coefficients at 25 °C (77 °F)
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