Cold Weather Catalog - Chromalox Precision Heat and Control

TechnicalReference DataPhysical & Thermodynamic Properties of Common Solids (cont’d.)Properties of Non-Metallic SolidsProperties of Non-Metallic SolidsSpecifi c ThermalHeat Conductivity MeltingDensity (Btu/lb/°F (Btu/in/ PointSubstance (Lbs/Ft 3 ) 20°C 68°F) hr/ft 2 /°F) (°F)Alumina 231 0.19 205 —Aluminum Silicate(Lava) 130 0.25 9 —Asbestos (Insul.) 36 0.2 1.1 —Asbestos - CementBoard 120 0.24 4 —Asphalt 81 0.4 5.2 250Bakelite 81 0.35 116 —Basalt 184 0.2 — —Beeswax 60 — — 144Boron Nitride (Comp.) 130 0.32 150 —Brick, Building 123 0.22 4.8 —Carbon, Powder 131 0.168 2.4 6400Graphite, Solid 140 0.165 1044 —Graphite, Powder 130 0.165 1.27 —Diamond 219 0.16 15840 —Cellulose (Pulp) 3.4 0.35 0.32 —Chalk 143 0.215 5.76 —Charcoal (Oak) 33 0.2 0.36 —Clay 115 0.22 9 —Coal (Anthracite) 97 0.3 1.18 —Coke 75 0.36 6.6 —Concrete, Sand 144 0.22 12.6 —Concrete, Cinder 97 0.21 4.92 —Cordierite 138 0.35 23 —Cork (Granulated) 5.4 0.485 0.336 —Earth (42% H 2O)Earth (Dry, Packed)108950.90.427.440.9——Earth (Dry, Stony) 127 0.44 3.6 —Fiberglas ® (Insul.) 0.75 — 0.29 —Fiberglas ® (Insul.) 3 — 0.22 —Firebrick (Clay) 112 0.198 6.96 —Fosterite 174 0.23 26 —Fused Silica (Quartz) 137 0.31 9.96 —GlassNormal 139 0.199 7.08 2200Crown 154 0.161 7.08 —Flint (Leaded) 200 0.117 9.48 —Pyrex 139 0.20 7.08 —Granite 159 0.192 13 - 28 —Ice -0°C (32°F) 57.5 0.465 15.6 32Limestone 153 0.217 6.48 —Specifi c ThermalHeat Conductivity MeltingDensity (Btu/lb/°F (Btu/in/ PointSubstance (Lbs/Ft 3 ) 20°C 68°F) hr/ft 2 /°F) (°F)Magnesia 85% (Insul.) 12 0.222 4.2 —Magnesium Oxide 135 0.25 17.6 —Marble 170 0.21 18 —Mica 165 0.206 3 —Paper 58 0.32 0.9 —PlasticsABS 62.2 0.3 - 0.4 1.56 —Cellulose Acetate 82.9 0.3 - 0.42 2.28 —Epoxy (Resin) 71.8 0.4 - 0.5 1.2 - 3.5 —Fluoroplastic (PTFE) 133 0.25 1.68 —Nylon 69.1 0.4 1.2 —Phenolic 82.9 0.35 0.097 - 0.3 —Polyethylene 57 0.55 2.28 —Polystyrene 64.8 0.32 0.7 - 1.08 —Polystyrene (Exp.) 1.7 0.29 0.252 —Polypropylene 56.7 0.45 1.21 - 1.36 —Polyurethane (Exp.) 1.5 0.38 0.228 —Polyvinyl 86.4 0.2 - 0.3 0.84 - 1.20 —Paraffi n 56 0.69 1.68 133Porcelain 145 0.26 15.6 —Pyroceram 163 0.233 23.4 —Quartz 138 0.17 27.6 3150Rigid InsulationFiber Board 14.8 0.28Inorganic Bonded 10 - 15 0.45Rock Salt 136 0.21 — 1472Rubber Soft 68.6 0.48 0.96 —Rubber, Hard 74.3 0.48 1.104 —Sand 94 0.195 2.25 —Silicon 145 0.181 — 2577Sodium Carbonate 135 0.30 — 1546Sodium Chloride 135 0.22 — 1440Sodium Cyanide 94 0.3 — 1015Sodium Nitrate 141 0.29 — 555Sodium Nitrite 135 0.3 — 490Steatite 158 0.2 23.2 —Sugar 105 0.3 — 160Sulfur 129 0.181 1.8 —Woods (Average) 23 - 70 0.45 - 0.67 0.78 - 1.78 —Oak, Red 42 0.57 1.188 —Pine, White 25 0.67 0.72 —TECHNICAL209