Cone 011 temperature
Orton cone 011 bends at 1607 °F (875 °C) at 108 °F/hr and 1641 °F (894 °C) at 270 °F/hr. It sits in the low fire range — cone 12 of 38 on the chart, counting up from 022.
108 °F/hr · 60 °C/hr
1607 °F875 °C
Medium — the rate most charts quote
270 °F/hr · 150 °C/hr
1641 °F894 °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 1607 °F is not the same as firing to cone 011 — put a witness cone on the shelf.
Cone 011 is not cone 11
The leading zero means cone 011 counts down from cone 1 — it's a low fire temperature (1607 °F). Cone 11 is 754 °F hotter (2361 °F), in the above studio range range.
What cone 011 is used for
Low fire — Below the usual bisque range. Some low-fire glazes, glass, and enamel work land here; cone 010–08 appears as a soft bisque for very porous ware.
Cone 011 compared
| Comparison | At 108 °F/hr | Difference (medium) | Difference (fast) | |
|---|---|---|---|---|
| cone 011 vs cone 11 | 1607 → 2361 °F | 754 °F (419 °C) | 758 °F (421 °C) | cone 11 is hotter |
| cone 011 vs cone 012 | 1582 → 1607 °F | 25 °F (14 °C) | 21 °F (12 °C) | cone 011 is hotter |
| cone 011 vs cone 010 | 1607 → 1657 °F | 50 °F (28 °C) | 38 °F (21 °C) | cone 010 is hotter |
| cone 011 vs cone 06 | 1607 → 1828 °F | 221 °F (123 °C) | 214 °F (119 °C) | cone 06 is hotter |
| cone 011 vs cone 04 | 1607 → 1945 °F | 338 °F (188 °C) | 330 °F (183 °C) | cone 04 is hotter |
| cone 011 vs cone 5 | 1607 → 2167 °F | 560 °F (311 °C) | 564 °F (313 °C) | cone 5 is hotter |
| cone 011 vs cone 6 | 1607 → 2232 °F | 625 °F (347 °C) | 628 °F (349 °C) | cone 6 is hotter |
| cone 011 vs cone 10 | 1607 → 2345 °F | 738 °F (410 °C) | 740 °F (411 °C) | cone 10 is hotter |
Convert
cone 011 bends at
1607 °F(875 °C)
At 108 °F/hr (60 °C/hr) — medium. Faster firing → the same cone bends hotter. Everything about cone 011 →
Questions
- What temperature is cone 011?
- Orton cone 011 bends at about 1607 °F (875 °C) when the kiln climbs at 108 °F per hour, and about 1641 °F (894 °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 011 in Celsius?
- 875 °C at 108 °F/hr (60 °C/hr) and 894 °C at 270 °F/hr (150 °C/hr), converted from Orton's Fahrenheit chart for self-supporting regular cones.
- Is cone 011 the same as cone 11?
- No — and this is the most common cone mix-up. Cones with a leading zero count down toward cone 1, so cone 011 is cooler than cone 11: about 1607 °F versus 2361 °F at 108 °F/hr, a difference of 754 °F. Read the zero as "oh", not as nothing.
- What is cone 011 used for?
- cone 011 sits in the low fire range. Below the usual bisque range. Some low-fire glazes, glass, and enamel work land here; cone 010–08 appears as a soft bisque for very porous ware.
- How far is cone 011 from cone 012 and cone 010?
- At 108 °F/hr, cone 012 bends 25 °F cooler (1582 °F) and cone 010 bends 50 °F hotter (1657 °F). One cone step is not a fixed number of degrees — the spacing varies across the chart.
Firing to cone 011? Claybench schedules the kiln around it.
Clay body, glazes, and firing schedule are matched by cone before a plan is saved.