Orton Self-Supporting Cones

Orton Self-Supporting ConesPyrometric cones measure heat-work (the effect of time and temperature).

Pyrometric cones are 2.5 inch 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. 25 cones per box.