Ceramic Cone Temperatures

Cone 022 is the lowest melting cone and requires the least amount of heat to deform or bend.

Ceramic cone temperatures.

The cones often used in sets of three are positioned in a kiln with the wares to be fired and provide a visual indication of when the wares have reached a required state of maturity a combination of time and temperature. Temperature equivalent chart for orton cones cone 022 14 pyrometric cones have been used to monitor ceramic firings for more than 100 years. Ware and glaze types. Please note that the cone chart gives 3 different temperatures for each cone number.

Cone numbers orton makes cones from cone 022 up to cone 42. Stoneware glaze some decals fire to cone 10. During firing a cone softens and melts as it is heated. Thus pyrometric cones give a temperature equivalent.

As discussed above the equivalent cone temperature depends upon how fast one gets to it. Pyrometric cones are pyrometric devices that are used to gauge heatwork during the firing of ceramic materials. They are useful in determining when a firing is complete if the kiln provided enough heat if there was a temperature difference in the kiln or if a problem occured during the firing. Pyrometric cones will be the first to let you know your ceramic firing is under control or that subtle changes.

Cones used on the kiln shelf bend due to the effects of gravity pulling the tip down. Pyrometric cones measure heatwork the effect of time and temperature.