Cone 018 temperature
Orton cone 018 bends at 1319 °F (715 °C) at 108 °F/hr and 1353 °F (734 °C) at 270 °F/hr. It sits in the decorating fire range — cone 5 of 38 on the chart, counting up from 022.
108 °F/hr · 60 °C/hr
1319 °F715 °C
Medium — the rate most charts quote
270 °F/hr · 150 °C/hr
1353 °F734 °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 1319 °F is not the same as firing to cone 018 — put a witness cone on the shelf.
What cone 018 is used for
Decorating fire — The lowest cones — used for overglaze work fired onto already-glazed ware: lusters, china paints, and decals. Too cool to mature clay or glaze.
Cone 018 compared
| Comparison | At 108 °F/hr | Difference (medium) | Difference (fast) | |
|---|---|---|---|---|
| cone 018 vs cone 019 | 1252 → 1319 °F | 67 °F (37 °C) | 70 °F (39 °C) | cone 018 is hotter |
| cone 018 vs cone 017 | 1319 → 1360 °F | 41 °F (23 °C) | 52 °F (29 °C) | cone 017 is hotter |
| cone 018 vs cone 06 | 1319 → 1828 °F | 509 °F (283 °C) | 502 °F (279 °C) | cone 06 is hotter |
| cone 018 vs cone 04 | 1319 → 1945 °F | 626 °F (348 °C) | 618 °F (343 °C) | cone 04 is hotter |
| cone 018 vs cone 5 | 1319 → 2167 °F | 848 °F (471 °C) | 852 °F (473 °C) | cone 5 is hotter |
| cone 018 vs cone 6 | 1319 → 2232 °F | 913 °F (507 °C) | 916 °F (509 °C) | cone 6 is hotter |
| cone 018 vs cone 10 | 1319 → 2345 °F | 1026 °F (570 °C) | 1028 °F (571 °C) | cone 10 is hotter |
Convert
cone 018 bends at
1319 °F(715 °C)
At 108 °F/hr (60 °C/hr) — medium. Faster firing → the same cone bends hotter. Everything about cone 018 →
Questions
- What temperature is cone 018?
- Orton cone 018 bends at about 1319 °F (715 °C) when the kiln climbs at 108 °F per hour, and about 1353 °F (734 °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 018 in Celsius?
- 715 °C at 108 °F/hr (60 °C/hr) and 734 °C at 270 °F/hr (150 °C/hr), converted from Orton's Fahrenheit chart for self-supporting regular cones.
- What is cone 018 used for?
- cone 018 sits in the decorating fire range. The lowest cones — used for overglaze work fired onto already-glazed ware: lusters, china paints, and decals. Too cool to mature clay or glaze.
- How far is cone 018 from cone 019 and cone 017?
- At 108 °F/hr, cone 019 bends 67 °F cooler (1252 °F) and cone 017 bends 41 °F hotter (1360 °F). One cone step is not a fixed number of degrees — the spacing varies across the chart.
Firing to cone 018? Claybench schedules the kiln around it.
Clay body, glazes, and firing schedule are matched by cone before a plan is saved.