I did a little more research and found an interesting article from FIRE and SCIENCE TECHNOLOGY write up. Part of that document has a blurb on Temperatures of Flame Temperatures in Room Fires:
<TABLE cellSpacing=0 cellPadding=0 width="90%" align=center border=0><TBODY><TR><TD class=pagesubtitles align=middle>Flame temperatures in room fires
</TD></TR><TR><TD class=mainjust>There is fairly broad agreement in the fire science community that flashover is reached when the average upper gas temperature in the room exceeds about 600°C. Prior to that point, no generalizations should be made: There will be zones of 900°C flame temperatures, but wide spatial variations will be seen. Of interest, however, is the peak fire temperature normally associated with room fires. The peak value is governed by ventilation and fuel supply characteristics [14] and so such values will form a wide frequency distribution. Of interest is the maximum value which is fairly regularly found. This value turns out to be around 1200°C, although a typical post-flashover room fire will more commonly be 900~1000°C. The time-temperature curve for the standard fire endurance test, ASTM E 119 [15] goes up to 1260°C, but this is reached only in 8 hr. In actual fact, no jurisdiction demands fire endurance periods for over 4 hr, at which point the curve only reaches 1093°C. </TD></TR></TBODY></TABLE>
The entire document is here:
http://www.doctorfire.com/flametmp.html
Melting Point Iron = 1535 C
Melting Point of (pure) Silver = 961 C
The Melting Point of Solder varies between 118-243 C depending on the Tin / Lead content.
So I guess depending upon the conditions of the fire, the Iron should not melt, however, the Silver Frame could be in the melting point range. Possibly some Alloys in the less than 100% Silver (as found on these frames) could possibly up the melting point as well.
<TABLE cellSpacing=0 cellPadding=0 width="90%" align=center border=0><TBODY><TR><TD class=pagesubtitles align=middle>Flame temperatures in room fires
</TD></TR><TR><TD class=mainjust>There is fairly broad agreement in the fire science community that flashover is reached when the average upper gas temperature in the room exceeds about 600°C. Prior to that point, no generalizations should be made: There will be zones of 900°C flame temperatures, but wide spatial variations will be seen. Of interest, however, is the peak fire temperature normally associated with room fires. The peak value is governed by ventilation and fuel supply characteristics [14] and so such values will form a wide frequency distribution. Of interest is the maximum value which is fairly regularly found. This value turns out to be around 1200°C, although a typical post-flashover room fire will more commonly be 900~1000°C. The time-temperature curve for the standard fire endurance test, ASTM E 119 [15] goes up to 1260°C, but this is reached only in 8 hr. In actual fact, no jurisdiction demands fire endurance periods for over 4 hr, at which point the curve only reaches 1093°C. </TD></TR></TBODY></TABLE>
The entire document is here:
http://www.doctorfire.com/flametmp.html
Melting Point Iron = 1535 C
Melting Point of (pure) Silver = 961 C
The Melting Point of Solder varies between 118-243 C depending on the Tin / Lead content.
So I guess depending upon the conditions of the fire, the Iron should not melt, however, the Silver Frame could be in the melting point range. Possibly some Alloys in the less than 100% Silver (as found on these frames) could possibly up the melting point as well.
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