Electric Kiln Cone Chart

Cone temperature conversion chart.

Electric kiln cone chart.

Ceramic work is typically fired twice. Turning the kiln on and off using orton small pyrometric witness cones in the kiln sitter. Firing converts ceramic work from weak clay into a strong durable crystalline glasslike form. Kiln posts support shelves while optimizing space within the kiln for firing.

Cone 022 is the lowest melting cone and requires the least amount of heat to deform or bend. 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. Stoneware glaze some decals fire to cone 10. These are used to hold and protect the edges of pieces in low to medium low firings.

During firing a cone softens and melts as it is heated. They are available to order in many. Calculate kiln cone temperature for cone 022 to cone 10 based on the kiln s heating rate. Temperature equivalent chart for orton cones cone 022 14 pyrometric cones have been used to monitor ceramic firings for more than 100 years.

Kiln cone temperature calculator. Kiln firing chart temperature c f 1400 2552 1300 2372 1200 2192 1100 2012 1000 1832 900 0111652 800 1472 700 0191292 600 1112 500 932 400 752 300 572 200 392 100 212 cone approx 14 13 12 11 10 9 8 7 6 5 4 3 2 01. The goal of bisque firing is to convert greenware to a durable semi vitrified porous stage where it can be safely handled during the glazing and decorating process. Since earthenware is softer than other clay bodies it seldom becomes fully vitrified meaning it will be porous absorb liquids and be less durable.

Firing clay from mud to ceramic. Ware and glaze types. While cone 04 is the average when firing earthenware low fire materials can be fired anywhere from cone 015 up to cone 1. Cone numbers orton makes cones from cone 022 up to cone 42.

Though some stilts may be able to stay in form at cone 10 most are better suited for temperatures at and below cone 6. It is bisque fired and then glaze fired.