Cone 01 temperature
Orton cone 01 bends at 2046 °F (1119 °C) at 108 °F/hr and 2080 °F (1138 °C) at 270 °F/hr. It sits in the between the ranges range — cone 23 of 38 on the chart, counting up from 022.
108 °F/hr · 60 °C/hr
2046 °F1119 °C
Medium — the rate most charts quote
270 °F/hr · 150 °C/hr
2080 °F1138 °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 2046 °F is not the same as firing to cone 01 — put a witness cone on the shelf.
Cone 01 is not cone 1
The leading zero means cone 01 counts down from cone 1 — it's a between the ranges temperature (2046 °F). Cone 1 is 33 °F hotter (2079 °F), in the between the ranges range.
What cone 01 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 01 compared
| Comparison | At 108 °F/hr | Difference (medium) | Difference (fast) | |
|---|---|---|---|---|
| cone 01 vs cone 1 | 2046 → 2079 °F | 33 °F (18 °C) | 29 °F (16 °C) | cone 1 is hotter |
| cone 01 vs cone 02 | 2016 → 2046 °F | 30 °F (17 °C) | 28 °F (16 °C) | cone 01 is hotter |
| cone 01 vs cone 06 | 1828 → 2046 °F | 218 °F (121 °C) | 225 °F (125 °C) | cone 01 is hotter |
| cone 01 vs cone 04 | 1945 → 2046 °F | 101 °F (56 °C) | 109 °F (61 °C) | cone 01 is hotter |
| cone 01 vs cone 5 | 2046 → 2167 °F | 121 °F (67 °C) | 125 °F (69 °C) | cone 5 is hotter |
| cone 01 vs cone 6 | 2046 → 2232 °F | 186 °F (103 °C) | 189 °F (105 °C) | cone 6 is hotter |
| cone 01 vs cone 10 | 2046 → 2345 °F | 299 °F (166 °C) | 301 °F (167 °C) | cone 10 is hotter |
Convert
cone 01 bends at
2046 °F(1119 °C)
At 108 °F/hr (60 °C/hr) — medium. Faster firing → the same cone bends hotter. Everything about cone 01 →
Questions
- What temperature is cone 01?
- Orton cone 01 bends at about 2046 °F (1119 °C) when the kiln climbs at 108 °F per hour, and about 2080 °F (1138 °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 01 in Celsius?
- 1119 °C at 108 °F/hr (60 °C/hr) and 1138 °C at 270 °F/hr (150 °C/hr), converted from Orton's Fahrenheit chart for self-supporting regular cones.
- Is cone 01 the same as cone 1?
- No — and this is the most common cone mix-up. Cones with a leading zero count down toward cone 1, so cone 01 is cooler than cone 1: about 2046 °F versus 2079 °F at 108 °F/hr, a difference of 33 °F. Read the zero as "oh", not as nothing.
- What is cone 01 used for?
- cone 01 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 01 from cone 02 and cone 1?
- At 108 °F/hr, cone 02 bends 30 °F cooler (2016 °F) and cone 1 bends 33 °F hotter (2079 °F). One cone step is not a fixed number of degrees — the spacing varies across the chart.
Firing to cone 01? Claybench schedules the kiln around it.
Clay body, glazes, and firing schedule are matched by cone before a plan is saved.