After firing a kiln a simple glance at the cone can tell if the firing was sucessful.
Ceramic firing temperatures cone.
Cone temperature conversion chart.
1112 f 605 c to cone 013 approx.
Mid fire earthenware should be fired between cone 2 and cone 7.
1566 f 850 c this range is usually used for luster glazes and very low firing overglazes.
Pyrometric cones are pyrometric devices that are used to gauge heatwork during the firing of ceramic materials.
This is the most common temperature range for industrial ceramics.
Ware must be fired at least once at a higher temperature first in order for the clay body to mature.
The small and bar cones are mainly used in the kiln shut off device called the kilnsitter.
From cone 022 approx.
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.
Mostly yellow with a hint of orange.
This is a mechanical device that shuts off the kiln when the temperature inside is sufficient to cause the cone to deform under the weight of the kilnsitter rod.
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.
Ware and glaze types.
Stoneware glaze some decals fire to cone 10.