|This article is about an older version of DF.|
|Defined: Value • Color • Density • Strain at yield • Temperature values|
|Derived: Magma safety • Fire safety|
|Fluids: Depth • Flow • Pressure|
Fire-safe materials are those that are not damaged by fire. These materials include glass, (most) metal (tin has a low enough melting point to turn into a pool of tin if exposed to fire), ash, and most stone. Only nether-cap wood is fire-safe; all other types of wood are not. Bituminous coal, lignite, charcoal, and coke are all flammable and ought not be fire-safe, but the bug mentioned below allows them to be used as fire-safe building materials. Furthermore, the game only considers bars, blocks, stone, logs, and anvils to be capable of being fire-safe - all other item types are rejected outright.
Fire-safe materials are only required when the object is going to come into contact with extreme heat, such as all conventional furnaces and the forge. For the magma-powered versions of these buildings, as well as anything that will be in direct contact with magma (such as floodgates), fire-safe material is not enough: it has to be magma-safe.
As far as the game is concerned, only materials which are stable at the temperature fire can generate temperatures significantly higher (in particular, any burning item will heat up to 200 degrees above its material's ignite point).Bug:5011(i.e. MELTING_POINT/BOILING_POINT/IGNITE_POINT/HEATDAM_POINT greater than 11000 and COLDDAM_POINT less than 11000) are considered fire-safe. Despite this temperature being considered fire-safe, actual