Firing with Pyrometric Cones

Firing with Pyrometric Cones

Pyrometric cones are slender pyramids made from about 100 carefully controlled compositions and have been used since the late 1800’s to monitor kiln performance. Originally thought to be temperature indicators, studies demonstrated that time and atmosphere also...
Cone Chart for Firing

Cone Chart for Firing

Cone No. Fahrenheit Centigrade Visual Color 022 1112 600 DULL RED 021 1137 614   020 1175 635   019 1261 683   018 1322 717   017 1376 747   016 1457 792   015 1479 804   014 1540 838   013 1565 852   012 1623 884 CHERRY...