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Pyrometric Cones are used on a shelf inside a kiln or in a kiln sitter to determine when a firing is complete, if the kiln provided enough heat or if there was a problem during the firing. Orton cones are made from carefully controlled compositions so that they bend in a repeatable manner over a very small temperature range. When used in a cone holder the cone tip sags until it reaches a point level with the base indicating the kiln has properly fired. The cones can also be used in a kiln sitter with equally accurate results. Cones have been used in ceramic firings for more than 100 years and Orton has the history and experience to provide the very best product. The number of this cone is 019 which bends at an approximate temperature of 1261° F, depending on firing conditions.
ifish
Reviewed in the United States on June 18, 2023
I got these cones in to do overgraze. They work great. Only issue is that these cones come stuck together in pairs. You have to break them apart. Even though I have done this with other higher temp cones these are very soft and break much easier. Disappointed as I will get fewer firings out of the box as this part of the process is left to the consumer. It defiantly makes it less of a value as I broke 2 sets before getting a clean break. So it’s like 1/3 of the winery in the box at this rate of breakage.
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