Ceramic Firing Temp

Low fire mid range and high fire ranges.

Ceramic firing temp.

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. For mid range material a kiln should be firing at a temperature between 2124 and 2264 1162 1240. Mostly yellow with a hint of orange. If the temperature goes too high the glaze will become too melted and run off the surface of the pottery.

Clay bodies have ranges of temperature that they can be fired to. We get many questions about clay firing temperatures. The temperature needed to transform soft clay into hard ceramic is extremely high and is usually provided by a kiln. Mid fire earthenware should be fired between cone 2 and cone 7.

This is the most common temperature range for industrial ceramics. The ware is returned to the kiln for a very low temperature firing in order to fuse the overglazes. The glass phase that forms during the firing of a ceramic material can be thought of as the glue that holds the finished work together. If the temperature goes too high the glaze will become too melted and run off the surface of the pottery.

First it is important to know that the maximum cone rating of a stoneware or porcelain clay is the temperature at which it vitrifies. Each ceramic glaze should be fired to a specific temperature range. If fired at too low a temperature the glaze will not mature. When potters talk about ceramic firing ranges they are usually referring to the three most common.

The fancy name for this is vitrification or the ceramic chemistry that transforms a clay body into a hard non crystalline glass.