Cone 2 temperature
Orton cone 2 bends at 2088 °F (1142 °C) at 108 °F/hr and 2127 °F (1164 °C) at 270 °F/hr. It sits in the between the ranges range — cone 25 of 38 on the chart, counting up from 022.
108 °F/hr · 60 °C/hr
2088 °F1142 °C
Medium — the rate most charts quote
270 °F/hr · 150 °C/hr
2127 °F1164 °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 2088 °F is not the same as firing to cone 2 — put a witness cone on the shelf.
Cone 2 is not cone 02
Cone 02 — with the leading zero — is 72 °F cooler (2016 °F), in the between the ranges range. Read the zero as “oh”; a glaze labeled for one will not behave at the other.
What cone 2 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 2 compared
| Comparison | At 108 °F/hr | Difference (medium) | Difference (fast) | |
|---|---|---|---|---|
| cone 2 vs cone 02 | 2016 → 2088 °F | 72 °F (40 °C) | 75 °F (42 °C) | cone 2 is hotter |
| cone 2 vs cone 1 | 2079 → 2088 °F | 9 °F (5 °C) | 18 °F (10 °C) | cone 2 is hotter |
| cone 2 vs cone 3 | 2088 → 2106 °F | 18 °F (10 °C) | 11 °F (6 °C) | cone 3 is hotter |
| cone 2 vs cone 06 | 1828 → 2088 °F | 260 °F (144 °C) | 272 °F (151 °C) | cone 2 is hotter |
| cone 2 vs cone 04 | 1945 → 2088 °F | 143 °F (79 °C) | 156 °F (87 °C) | cone 2 is hotter |
| cone 2 vs cone 5 | 2088 → 2167 °F | 79 °F (44 °C) | 78 °F (43 °C) | cone 5 is hotter |
| cone 2 vs cone 6 | 2088 → 2232 °F | 144 °F (80 °C) | 142 °F (79 °C) | cone 6 is hotter |
| cone 2 vs cone 10 | 2088 → 2345 °F | 257 °F (143 °C) | 254 °F (141 °C) | cone 10 is hotter |
Convert
cone 2 bends at
2088 °F(1142 °C)
At 108 °F/hr (60 °C/hr) — medium. Faster firing → the same cone bends hotter. Everything about cone 2 →
Questions
- What temperature is cone 2?
- Orton cone 2 bends at about 2088 °F (1142 °C) when the kiln climbs at 108 °F per hour, and about 2127 °F (1164 °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 2 in Celsius?
- 1142 °C at 108 °F/hr (60 °C/hr) and 1164 °C at 270 °F/hr (150 °C/hr), converted from Orton's Fahrenheit chart for self-supporting regular cones.
- Is cone 2 the same as cone 02?
- No — and this is the most common cone mix-up. Cones with a leading zero count down toward cone 1, so cone 02 is cooler than cone 2: about 2016 °F versus 2088 °F at 108 °F/hr, a difference of 72 °F. Read the zero as "oh", not as nothing.
- What is cone 2 used for?
- cone 2 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 2 from cone 1 and cone 3?
- At 108 °F/hr, cone 1 bends 9 °F cooler (2079 °F) and cone 3 bends 18 °F hotter (2106 °F). One cone step is not a fixed number of degrees — the spacing varies across the chart.
Firing to cone 2? Claybench schedules the kiln around it.
Clay body, glazes, and firing schedule are matched by cone before a plan is saved.