The two Cone Temperature Charts shown here indicate temperature equivalents for large cones when heated at the rate of 270°F (150°C) or 108°F (42°C) per hour in an oxidizing atmosphere. Small cones mature at approximately 25°F higher based on 540°F (282°C) per hour.
The two Cone Temperature Charts shown here indicate temperature equivalents for large cones when heated at the rate of 270°F (150°C) or 108°F (42°C) per hour in an oxidizing atmosphere. Small cones mature at approximately 25°F higher based on 540°F (282°C) per hour. 
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