description
Diameter of center hole (mm): 20
manufacturer/tradename
Coorstek 66453
hole diam.
23 mm , center, 3 mm , small
plate diam.
240 mm
General description
Chemical porcelain has an average coefficient of expansion from 20°C to 200°C is 3.56 x 10-6, gradually increasing to 4.69 x 10-6 at 1000°C. To prevent thermal stress cracks on porcelain ware it is strongly recommended a heating/cooling rate not to exceed 200°C/hour. The desiccator plate has Small perforations throughout the plate, and one large hole in center. The plate is glazed on one side and is without feet.
Refractory Qualities
Fusion point: 1670°C
Softening point: 1400°C
Limit of use, unglazed: 1400°C
Limit of use, glazed: 1150°C
Limit of use, evacuated: 1300°C
Refractory Qualities
Fusion point: 1670°C
Softening point: 1400°C
Limit of use, unglazed: 1400°C
Limit of use, glazed: 1150°C
Limit of use, evacuated: 1300°C
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