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Thermal properties

Coefficient of mean linear thermal expansion
  α(20, 700°C) (0 ± 0,5) x 10-6 /K

Resistance to thermal gradients (RTG)
The RTG value is a measure of how well a material can resist temperature differences on a restricted area, e.g. the temperature difference between the hot area in the center of a panel and the cold edge area (room temperature).
No breakage caused by thermal stress occurs at a maximum temperature of Tmax   ≤ 700°C

Resistance to thermal shock (RTS)
The RTS value is a measure of the panel‘s ability to withstand a sudden thermal shock.
No breakage caused by thermal stress occurs at a maximum temperature of Tmax   ≤ 700°C

Temperature/Time Loading
The temperature/time loading limits determine the permissible temperature for set usage times at which no breakage caused by thermal stress occurs.

Usage temperature Tmax Usage time
560°C
610°C
660°C
710°C
760°C
5,000 h
1,000 h
100 h
10 h
5 h


Remarks:
The temperature values refer to the hottest points on the outside pane. (Tmax). It must be ensured that these temperature/time loading limits are not exceeded.

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SCHOTT North America, Inc.

5530 Shepherdsville Road
Louisville, KY 40228
USA
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 +1 (502)966-4976
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