Ceramic Firing Temp

This is the hardening tightening and finally the partial glassification of the clay.

Ceramic firing temp.

First it is important to know that the maximum cone rating of a stoneware or porcelain clay is the temperature at which it vitrifies. For mid range material a kiln should be firing at a temperature between 2124 and 2264 1162 1240. If the temperature goes too high the glaze will become too melted and run off the surface of the pottery. The ware is returned to the kiln for a very low temperature firing in order to fuse the overglazes.

You cannot fire pottery in a home oven because ovens do not get up to the high temperatures of more than 1 500 degrees fahrenheit that you need for firing clay. If the temperature goes too high the glaze will become too melted and run off the surface of the pottery. Mid fire earthenware should be fired between cone 2 and cone 7. Each ceramic glaze should be fired to a specific temperature range.

The fancy name for this is vitrification or the ceramic chemistry that transforms a clay body into a hard non crystalline glass. People want to know if they can fire a certain clay to a certain cone. We get many questions about clay firing temperatures. When potters talk about ceramic firing ranges they are usually referring to the three most common.

If fired at too low a temperature the glaze will not mature. This is the most common temperature range for industrial ceramics. Clay bodies have ranges of temperature that they can be fired to. The temperature needed to transform soft clay into hard ceramic is extremely high and is usually provided by a kiln.

Mostly yellow with a hint of orange.