Ceramic Temperature Cones

Pyrometric cones measure heatwork the effect of time and temperature.

Ceramic temperature cones. For example cone 06 indicates a temperature range of approximately 1800 1850f. Temperature equivalent chart for orton cones cone 022 14 pyrometric cones have been used to monitor ceramic firings for more than 100 years. A body glaze layer that forms between the clay body and glaze. Although cones do not actually measure temperature cone bending behavior and temperature are related.

Pyrometric cones are pyrometric devices that are used to gauge heatwork during the firing of ceramic materials. Calculate kiln cone temperature for cone 022 to cone 10 based on the kiln s heating rate. Kiln cone temperature calculator. It is important not to confuse the lower maturing cones and bars whose numbers begin with an 0 with the higher cones and bars not containing this prefix.

Thus pyrometric cones give a temperature equivalent. Ware must be fired at least once at a higher temperature first in order for the clay body to mature. From cone 022 approx. Ware and glaze types.

Average is cone 10 2381 f 1305 c cone 8 12 range 2305 22419 f 1263 1326 c a hard vitrified non absorbent clay body. Cone temperature conversion chart. 1112 f 605 c to cone 013 approx. Very high fire porcelain.

Pyrometric cones will be the first to let you know your ceramic firing is under control or that subtle changes. Your ceramic ware provider can provide guidance on which cone to fire to for your specific ware. Use the cone comparison calculator to see the temperature difference between cones. Each cone type is assigned a number for example cone 06 and this number denotes a specific and fairly narrow temperature range.

A cone 01 needs less heat treatment than cone 1 and cone 020 needs less than 019. Because cones are made from carefully formulated ceramic compositions they bend reliably at specific temperature ranges. Pyrometric cones are designed to deform at certain moments during a firing. Ceramic ware is most often fired to a cone as opposed to a temperature.

Stoneware glaze some decals fire to cone 10. 1566 f 850 c this range is usually used for luster glazes and very low firing overglazes. A common temperature range for industrial ceramics. Cone 10 13 range 2381 2455 f 1305 1346 c.

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.