Cone 02 temperature
Orton cone 02 bends at 2016 °F (1102 °C) at 108 °F/hr and 2052 °F (1122 °C) at 270 °F/hr. It sits in the between the ranges range — cone 22 of 38 on the chart, counting up from 022.
108 °F/hr · 60 °C/hr
2016 °F1102 °C
Medium — the rate most charts quote
270 °F/hr · 150 °C/hr
2052 °F1122 °C
Fast — typical of a quick electric firing
Orton self-supporting regular cones; rate measured over the last 200 °F of the firing. Source: Orton °F chart; °C converted. Cones measure heat-work, so a controller set to 2016 °F is not the same as firing to cone 02 — put a witness cone on the shelf.
Cone 02 is not cone 2
The leading zero means cone 02 counts down from cone 1 — it's a between the ranges temperature (2016 °F). Cone 2 is 72 °F hotter (2088 °F), in the between the ranges range.
What cone 02 is used for
Between the ranges — Upper earthenware and lower mid-range. Less common as a target than the cones either side; some commercial glazes and sculpture bodies specify it.
Cone 02 compared
| Comparison | At 108 °F/hr | Difference (medium) | Difference (fast) | |
|---|---|---|---|---|
| cone 02 vs cone 2 | 2016 → 2088 °F | 72 °F (40 °C) | 75 °F (42 °C) | cone 2 is hotter |
| cone 02 vs cone 03 | 1987 → 2016 °F | 29 °F (16 °C) | 33 °F (18 °C) | cone 02 is hotter |
| cone 02 vs cone 01 | 2016 → 2046 °F | 30 °F (17 °C) | 28 °F (16 °C) | cone 01 is hotter |
| cone 02 vs cone 06 | 1828 → 2016 °F | 188 °F (104 °C) | 197 °F (109 °C) | cone 02 is hotter |
| cone 02 vs cone 04 | 1945 → 2016 °F | 71 °F (39 °C) | 81 °F (45 °C) | cone 02 is hotter |
| cone 02 vs cone 5 | 2016 → 2167 °F | 151 °F (84 °C) | 153 °F (85 °C) | cone 5 is hotter |
| cone 02 vs cone 6 | 2016 → 2232 °F | 216 °F (120 °C) | 217 °F (121 °C) | cone 6 is hotter |
| cone 02 vs cone 10 | 2016 → 2345 °F | 329 °F (183 °C) | 329 °F (183 °C) | cone 10 is hotter |
Convert
cone 02 bends at
2016 °F(1102 °C)
At 108 °F/hr (60 °C/hr) — medium. Faster firing → the same cone bends hotter. Everything about cone 02 →
Questions
- What temperature is cone 02?
- Orton cone 02 bends at about 2016 °F (1102 °C) when the kiln climbs at 108 °F per hour, and about 2052 °F (1122 °C) at 270 °F per hour. Cones measure heat-work — temperature over time — so the faster you fire, the hotter the kiln has to get for the same cone to bend.
- What is cone 02 in Celsius?
- 1102 °C at 108 °F/hr (60 °C/hr) and 1122 °C at 270 °F/hr (150 °C/hr), converted from Orton's Fahrenheit chart for self-supporting regular cones.
- Is cone 02 the same as cone 2?
- No — and this is the most common cone mix-up. Cones with a leading zero count down toward cone 1, so cone 02 is cooler than cone 2: about 2016 °F versus 2088 °F at 108 °F/hr, a difference of 72 °F. Read the zero as "oh", not as nothing.
- What is cone 02 used for?
- cone 02 sits in the between the ranges range. Upper earthenware and lower mid-range. Less common as a target than the cones either side; some commercial glazes and sculpture bodies specify it.
- How far is cone 02 from cone 03 and cone 01?
- At 108 °F/hr, cone 03 bends 29 °F cooler (1987 °F) and cone 01 bends 30 °F hotter (2046 °F). One cone step is not a fixed number of degrees — the spacing varies across the chart.
Firing to cone 02? Claybench schedules the kiln around it.
Clay body, glazes, and firing schedule are matched by cone before a plan is saved.