Application; Design Features; Characteristic Of Existing Heat-Resistant Steel. Expressions And Commentaries - Termofor Sajan Betriebsanleitung

1. APPLICATION

The wood-burning stove with stones section «Sayany» for heating of sauna's steam room and its adjacent
rooms. Also, the stove is destined for steam generation and water heating.
The stove is destined for private use in Russian sauna and renders possible to get all comfortable combinations
of temperature and humidity of air.
ATTENTION! If using of the stove «Sayany» for commercial purposes and, also, continuous heating of
stove for more than 10 hours, when working load will increase six-tenfold. Period of working time of the
stove greatly is reduced at such conditions and manufacturer declines all warranties.

2. DESIGN FEATURES

Peculiar stylish design
Translucent screen (for «Vitra» model) makes it possible to comfortably observe the flame under
different visual angles
Specially designed fire chamber for stoves of grid type
The sauna heater of the stove can contain over one quintal of stones
3.CHARACTERISTIC OF EXISTING HEAT-RESISTANT STEEL.
EXPRESSIONS AND COMMENTARIES
Heat-resistant or scaling resistance means capacity of metal to stand against corrosive attack of gases at high
temperatures (not to be confused with high-temperature strength).
Heat-resistant of steel is enhanced by chrome doping. Chrome creates an inactive film on a surface of steel,
which does not be subjected by corrosion till limiting temperature called as temperature of oxide scale formation
beginning.
Heat-resistant of steel and temperature of oxide scale formation beginning rises with increase of chrome
content.
Steel is deemed heat-resistant when it contents mass fraction of chrome 13 % and more.
Steel divides into low-alloyed, medium-alloy and highly alloyed depending on alloying elements content.
Steel is deemed highly alloyed when it contents alloying elements 10% and more.
Colloquially, popular phrase «stainless steel» is not standardized expression. Expression «corrosion resistant
steel» corresponds with this expression in modern materials science.
A key differentiator of corrosion resistant steel is chrome content 12,5% and more.
Steel used in manufacture of stoves «Sayany» - is heat-resistant, highly alloyed, corrosion resistant
(stainless) in accordance with above stated characteristics.
Temperature of oxide scale formation beginning of applied steel is not less 750C ? , and it is confirmed by
certificates of manufacturers.
For comparison: temperature of oxide scale formation beginning of constructional or «carbon» steel is no more
than 400C ? , it is greatly low than temperature of walls of functioning wood-burning stove.
23