Document j0MYRrEJYE0Vv3o3dQpk9x6Z

Specific Heat of a material is the quantity of heat energy required to produ.'c a unit change in temperature in a unit mass of the material. The common English ur..' *. of specific heat is expressed as Btu per F per lb: i.e., the Btu required to char.,- : the temperature of one pound of the material one degree F. Following is a tabulation of those J-M products for which specific heat valuer: are available. Note that the majority range from approximately 0.20 to 0.30. Therefore, in the event a value is required for a J-U product not listed, an average figure would be 0.25. J-M Product Name Specific Heats (Btu/F/lb) at following Temperatures, F 200 400 600 800 1000 1200 1400 1600 1800 .2000 o-..: Si 1-0-Cel 16-L and Si 1-0-Cel C-22. Insulating Bri'ok Si 1-0-Col Super Insulating Brick 0.21 0.20 0.24 0.22 0.26 0.23 0.27 0.24 0.28 0.26 0.29 0.27 0.30 0.28 0.30 0.29 - 0.30 - C.31 - :.3i ! J.V-1620 and JM-20 ' Ins. Fire Brick. JM-23 Insulating Fire Brick . . . JM-26 Insnlat'ng Fire Brick. . . . 0.20 0.20 0.20 0.22 0.24 0.22 0.23 0.25 0.24 0.24 0.26 0.25 0.25 0.26 0.26 0.27 0.27 0.27 _ d. 27 0.28 0.29 0.29 0.30 0.3C 0.:?: 0.26 0.27 0.28 0.28 0.29 0.29 0.2? i t ; 1 Superex .. . 0.24 0.27 0.28 0.29 0.30 0.31 0.32 - - " ~ 1 i Marinite-23 "j I Marinite-36 v . . 0.25 0.28 0.31 0.34 _ --i Marinite-65 1 100F 85% Magnesia . . . 0.29 200F 0.30 300F 0 .31 400F 0.33 Asbesto-Sponge Felted Fibrofll .................. Rock Cork .... Zerolite .................. Asbestocite . . . Transite . . . . . . 0.29 at approximately 300F 0.24 " t* 300F 0.27 " ft 100F 0.30 " tl 100F 0.27 " ft 300F 0.27 " ff 300F JOHNS-MANV1LLE Industrial Insulations Division Specific Heat J-M Insulating Materials TICMMICAL BATA HCTION IN-34C0