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Cone Temp at 108F/hr Temp at 270F/hr

Kiln Color

Ware and Glaze Types
10 2345 2381 White Stoneware Glaze
9 2300 2336
8 2280 2320
7 2262 2295
6 2232 2269 Porcelain Bisque
5 2167 2205
4 2124 2161 Porcelain Glaze
3 2106 2138
2 2088 2127
1 2079 2109
01 2046 2080 Yellow
02 2016 2052
03 1987 2019
04 1945 1971
05 1888 1911
06 1828 1855 Bisque,Low Glaze
07 1789 1809 Orange Red Family Glazes
08 1728 1753
09 1688 1706
010 1657 1679
011 1607 1641
012 1582 1620
013 1539 1582 Red
014 1485 1540
015 1456 1504
016 1422 1465
017 1360 1405 Glass Sagging
018 1319 1353 China Paints
019 1252 1283 Metallics, Lusters
020 1159 1180 Dull Red Decals
021 1112 1143 Glass Paint
022 1087 1094
  1. The temperature equivalents apply to large 2.5" pyrometric cones when heated at the indicated heating rate in an air atmosphere.  Small cones in the automatic shut-off have approximately the same temperature equivalent.
  2. When looking into the observation holes all objects that are near the same temperature will be near the same color.  Brighter appearing objects are hotter than darker ones.
  3. This table is for general information.  Consult the manufacturer's instructions for the correct cone number to use.

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