Ceramic Firing Cones

Pyrometric cones are used worldwide to monitor ceramic firings where consistent temperature is important to the quality of the final product being fired cones are used both in industry and by ceramic artists alike.

Ceramic firing cones.

Pyrometric cones measure heatwork the effect of time and temperature. The box will come in 25 sets that when split apart is 50 cones. Thus pyrometric cones give a temperature equivalent. Because cones are made from carefully formulated ceramic compositions they bend reliably at specific temperature ranges.

These cones are used in firing porcelain floor tile china stoneware structural clay products and some refractory materials. Pyrometric cones are pyrometric devices that are used to gauge heatwork during the firing of ceramic materials. For example to achieve a witness cone 06 you might need a cone 05 hotter in the sitter. Note that many people find that they have to put cones in the kiln sitter that are 1 cone hotter than desired to get the correct result on the shelf witness cones.

So for a cone 05 firing you would put an 05 small cone in the kiln sitter. Or to achieve. The temperature range is approximately 2175 to 2345 f 1180 to 1340 c. Pyrometric cones will be the first to let you know your ceramic firing is under control or that subtle changes.

Usable in cone holders or kiln sitters most accurate way to control ceramic firing consistent results orton has been manufacturing since 1896 please note that the cones can come in pairs that need to be split apart.