Cone 06 temperature
Orton cone 06 bends at 1828 °F (998 °C) at 108 °F/hr and 1855 °F (1013 °C) at 270 °F/hr. It sits in the bisque & earthenware range — cone 17 of 38 on the chart, counting up from 022.
108 °F/hr · 60 °C/hr
1828 °F998 °C
Medium — the rate most charts quote
270 °F/hr · 150 °C/hr
1855 °F1013 °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 1828 °F is not the same as firing to cone 06 — put a witness cone on the shelf.
Cone 06 is not cone 6
The leading zero means cone 06 counts down from cone 1 — it's a bisque & earthenware temperature (1828 °F). Cone 6 is 404 °F hotter (2232 °F), in the mid fire range.
What cone 06 is used for
Bisque & earthenware — The workhorse range for the first firing. Cone 06 and 04 are the two standard bisque targets, and most earthenware and low-fire glazes mature here too.
Convention per Bartlett factory bisque profiles (cone 08/06/04); Orton.
Cone 06 compared
| Comparison | At 108 °F/hr | Difference (medium) | Difference (fast) | |
|---|---|---|---|---|
| cone 06 vs cone 6 | 1828 → 2232 °F | 404 °F (224 °C) | 414 °F (230 °C) | cone 6 is hotter |
| cone 06 vs cone 07 | 1789 → 1828 °F | 39 °F (22 °C) | 46 °F (26 °C) | cone 06 is hotter |
| cone 06 vs cone 05½ | 1828 → 1859 °F | 31 °F (17 °C) | 22 °F (12 °C) | cone 05½ is hotter |
| cone 06 vs cone 04 | 1828 → 1945 °F | 117 °F (65 °C) | 116 °F (64 °C) | cone 04 is hotter |
| cone 06 vs cone 5 | 1828 → 2167 °F | 339 °F (188 °C) | 350 °F (194 °C) | cone 5 is hotter |
| cone 06 vs cone 10 | 1828 → 2345 °F | 517 °F (287 °C) | 526 °F (292 °C) | cone 10 is hotter |
Convert
cone 06 bends at
1828 °F(998 °C)
At 108 °F/hr (60 °C/hr) — medium. Faster firing → the same cone bends hotter. Everything about cone 06 →
Questions
- What temperature is cone 06?
- Orton cone 06 bends at about 1828 °F (998 °C) when the kiln climbs at 108 °F per hour, and about 1855 °F (1013 °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 06 in Celsius?
- 998 °C at 108 °F/hr (60 °C/hr) and 1013 °C at 270 °F/hr (150 °C/hr), converted from Orton's Fahrenheit chart for self-supporting regular cones.
- Is cone 06 the same as cone 6?
- No — and this is the most common cone mix-up. Cones with a leading zero count down toward cone 1, so cone 06 is cooler than cone 6: about 1828 °F versus 2232 °F at 108 °F/hr, a difference of 404 °F. Read the zero as "oh", not as nothing.
- What is cone 06 used for?
- cone 06 sits in the bisque & earthenware range. The workhorse range for the first firing. Cone 06 and 04 are the two standard bisque targets, and most earthenware and low-fire glazes mature here too.
- How far is cone 06 from cone 07 and cone 05½?
- At 108 °F/hr, cone 07 bends 39 °F cooler (1789 °F) and cone 05½ bends 31 °F hotter (1859 °F). One cone step is not a fixed number of degrees — the spacing varies across the chart.
Firing to cone 06? Claybench schedules the kiln around it.
Clay body, glazes, and firing schedule are matched by cone before a plan is saved.