Minimum temperature
The minimum bar for operating temperature for models with the function of adjusting the "degree" of heating of the executive body. This ranges from a modest 50°C in plastic pipe soldering irons to over 200°C in advanced soldering stations.
Max. temperature
The highest temperature to which the soldering iron can heat the material being processed. This temperature should be high enough to melt the solder or other workpiece material (such as polypropylene in soldered pipes), but not too high so as not to overheat the joint. Therefore, the choice for this indicator depends on the features of the planned work.
Note that in most household soldering irons for 20 – 60 W, the maximum temperature varies between 300 – 400 °C — this is enough to work with most solders used in radio engineering. In more powerful contact models, as well as soldering stations (see "Type"), there are indicators of the order of 700 – 800 °C — this allows you to work without problems with refractory solders, the melting point of which starts from 450 °C. For models designed for plastic pipes, the standard indicator is 300 °C — it is this temperature (or slightly lower, about 280 °C) that is considered optimal for soldering polypropylene. And the highest temperatures — 1300 °C and more — are able to provide gas soldering irons (see "Power")
