Cone 015 temperature
Orton cone 015 bends at 1456 °F (791 °C) at 108 °F/hr and 1504 °F (818 °C) at 270 °F/hr. It sits in the low fire range — cone 8 of 38 on the chart, counting up from 022.
108 °F/hr · 60 °C/hr
1456 °F791 °C
Medium — the rate most charts quote
270 °F/hr · 150 °C/hr
1504 °F818 °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 1456 °F is not the same as firing to cone 015 — put a witness cone on the shelf.
What cone 015 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 015 compared
| Comparison | At 108 °F/hr | Difference (medium) | Difference (fast) | |
|---|---|---|---|---|
| cone 015 vs cone 016 | 1422 → 1456 °F | 34 °F (19 °C) | 39 °F (22 °C) | cone 015 is hotter |
| cone 015 vs cone 014 | 1456 → 1485 °F | 29 °F (16 °C) | 36 °F (20 °C) | cone 014 is hotter |
| cone 015 vs cone 06 | 1456 → 1828 °F | 372 °F (207 °C) | 351 °F (195 °C) | cone 06 is hotter |
| cone 015 vs cone 04 | 1456 → 1945 °F | 489 °F (272 °C) | 467 °F (259 °C) | cone 04 is hotter |
| cone 015 vs cone 5 | 1456 → 2167 °F | 711 °F (395 °C) | 701 °F (389 °C) | cone 5 is hotter |
| cone 015 vs cone 6 | 1456 → 2232 °F | 776 °F (431 °C) | 765 °F (425 °C) | cone 6 is hotter |
| cone 015 vs cone 10 | 1456 → 2345 °F | 889 °F (494 °C) | 877 °F (487 °C) | cone 10 is hotter |
Convert
cone 015 bends at
1456 °F(791 °C)
At 108 °F/hr (60 °C/hr) — medium. Faster firing → the same cone bends hotter. Everything about cone 015 →
Questions
- What temperature is cone 015?
- Orton cone 015 bends at about 1456 °F (791 °C) when the kiln climbs at 108 °F per hour, and about 1504 °F (818 °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 015 in Celsius?
- 791 °C at 108 °F/hr (60 °C/hr) and 818 °C at 270 °F/hr (150 °C/hr), converted from Orton's Fahrenheit chart for self-supporting regular cones.
- What is cone 015 used for?
- cone 015 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 015 from cone 016 and cone 014?
- At 108 °F/hr, cone 016 bends 34 °F cooler (1422 °F) and cone 014 bends 29 °F hotter (1485 °F). One cone step is not a fixed number of degrees — the spacing varies across the chart.
Firing to cone 015? Claybench schedules the kiln around it.
Clay body, glazes, and firing schedule are matched by cone before a plan is saved.