Orton Large Pyrometric Cones - Box of 50  £14.70


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26533In StockCone 017 | 747°C
£14.70
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26534In StockCone 016 | 792°C
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26535In StockCone 015 | 804°C
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26536In StockCone 014 | 838°C
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26537In StockCone 013 | 852°C
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26538In StockCone 012 | 884°C
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26539In StockCone 011 | 894°C
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29220In StockCone 010 | 913°C
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26540In StockCone 09 | 923°C
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26541In StockCone 08 | 955°C
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26542In StockCone 07 | 984°C
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26543In StockCone 06 | 999°C
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26544In StockCone 05 | 1046°C
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26545In StockCone 04 | 1060°C
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26546In StockCone 03 | 1101°C
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26547In StockCone 02 | 1120°C
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26548In StockCone 01 | 1137°C
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26549In StockCone 1 | 1154°C
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26550In StockCone 2 | 1162°C
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26551In StockCone 3 | 1168°C
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26552In StockCone 4 | 1186°C
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26553In StockCone 5 | 1205°C
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26554Not In Stock
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Cone 6 | 1244°C
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26555Not In Stock
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Cone 7 | 1255°C
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26556In StockCone 8 | 1270°C
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26557In StockCone 9 | 1280°C
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26558In StockCone 10 | 1305°C
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26559In StockCone 11 | 1315°C
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26560In StockCone 12 | 1326°C
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  • Description
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Orton LogoPyrometric cones measure heat-work (the effect of time and temperature).

Pyrometric cones are slender pyramids made from about 100 carefully controlled compositions. Each cone number is unique in measuring temperature within a small temperature range (less than 30°C). Cones measure the amount of heat absorbed. As the cone nears its maturing range, it softens and the tip begins to bend, drawn down by the influence of gravity.

To use cones:

Use as witness cones to monitor firing. Three consecutively numbered cones will show the progress of the firing. Firing cone is properly bent when tip bends to near base of cone. When cone is not bent properly, adjust cone in kiln shut-off or setting on electronic controller.

Faster firings require higher temperatures for cones to bend. Remember: kiln shut-off devices and electronic controllers change with time. Cones do not. Cones provide the best indicator of fired results and repeatable firings.

Uniform mounting height and angle are very important.

Box of 50
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