Firing Ceramics Cone Chart

Yellow yellow orange orange red orange cherry red dull red dark red dull red glow black firing converts ceramic work.

Firing ceramics cone chart. Generally speaking the temperatures in the 108 f hour column are used when discussing ceramics porcelain and china. 1112 f 605 c to cone 013 approx. Fired at cone 02 to 1. Cone temperature conversion chart.

Temperature equivalent chart for orton cones cone 022 14 pyrometric cones have been used to monitor ceramic firings for more than 100 years. Stoneware glaze some decals fire to cone 10. Raku clay is usually bisque fired to cone 04 to 1 clays that are to have crystalline glazes should be bisque fired slightly higher than normal i e. Low fire earthenwares and lowfire lead glazes mature.

Ware and glaze types. Despite these labels many clays and glazes can also be fired over a range of temperatures and cone numbers with good results e g. 1112 f 605 c 1472 f. Cone 015 to cone 07 cone 013 approx.

As discussed above the equivalent cone temperature depends upon how fast one gets to it. Cone 015 organic matter in clay burns out. Pyrometric cones and bars are used so extensively for firing ceramics that most bodies glazes and other materials are designated with a cone number such as a cone 04 clay a cone 06 glaze or a cone 9 porcelain. Normal firing temperature for red bricks and terra cotta pots.

It is very important to know what type of clay you are using so that the right cone is used. Please note that the cone chart gives 3 different temperatures for each cone number. When i first started working with ceramics without thinking i just figured that. Using the wrong cone can prove disastrous and expensive for a whole kiln load of ceramics or pottery and even destroy your kiln.

4 to 12 used in firing porcelain floor tile china stoneware structural clay products and some refractory materials. 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. High fire porcelain or stoneware cone 02 to 1 degrees. 1472 to 1832 f.

Orange color in kiln. 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 02 03. 1566 f 850 c this range is usually used for luster glazes and very low firing overglazes. These cones are used in the firing of craft and art bodies for wall tile glazes and some structural clay products.

From cone 022 approx. The temperature equivalent range is approximately 1600 2150f 890 to 1170c.