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Difference between revisions of "v0.34:Fire-safe"

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{{quality|Fine|07:18, 29 May 2012 (UTC)}}{{av}}
 
{{quality|Fine|07:18, 29 May 2012 (UTC)}}{{av}}
[[Fire-safe]] materials are those that are not damaged by [[fire]]. These materials include glass, metal, and most stone. No types of wood are fire-safe, and neither are [[charcoal]] or [[coke]]. [[Bituminous coal]] and [[lignite]] are flammable stone, and ought not be fire-safe, but the bug mentioned below allows them to be safely used as a fire-safe building material. Furthermore, the game only considers [[bar]]s, [[block]]s, [[stone]], [[log]]s, and [[anvil]]s to be capable of being fire-safe - all other item types are rejected outright.
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{{Material properties}}
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'''Fire-safe materials''' are those that are not damaged by [[fire]]. These materials include [[glass]], most [[metal]] (everything ''but'' [[bismuth]], [[lead]], [[tin]], [[zinc]], and all three pewters) and most [[stone]]. [[Nether-cap]] is the only [[wood]] that can withstand fire (and even [[magma]]) thanks to its fixed temperature, but the game does not recognize it as a fire-safe building material. More esoteric fire-safe materials include [[ash]], [[potash]], [[pearlash]], and [[dragon]] tallow [[soap]] "bars". Counterintuitively, [[Bituminous coal]], [[lignite]], [[charcoal]], and [[coke]] '''are''' considered fire-safe, since they only catch fire when they're hot enough (see below).
  
Fire-safe materials are only required when the object is going to come into contact with extreme heat, such as all conventional [[furnace]]s and the [[metalsmith's forge|forge]]. For the magma-powered versions of these buildings, as well as anything that will be in direct contact with magma (such as [[floodgate]]s), fire-safe material is not enough: it has to be [[magma-safe]].
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For the purpose of job item requirements (e.g. in custom [[reaction]]s or when constructing certain buildings), only [[bar]]s, [[block]]s, [[stone]], [[log]]s, and [[anvil]]s can be classified as "fire-safe materials" - 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 [[furnace]]s and the [[metalsmith's forge|forge]]. For the magma-powered versions of these buildings, as well as anything that will be in direct contact with magma (such as [[floodgate]]s), fire-safe is not enough: it has to be [[magma-safe]].
  
As far as the game is concerned, only materials which are stable at the temperature {{ct|11000}} (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 [[fire]] generates temperatures as high as {{ct|11640}}.{{bug|5011}}
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As far as the game is concerned, only materials which are stable at the [[temperature]] {{ct|11000}} (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 [[fire]] can generate temperatures significantly higher - in particular, all burning items generate temperatures up to 200 degrees ''above'' their material's ignite point, so once a "fire-safe" item manages to get ignited (e.g. by exposure to [[magma]]), it can easily spread further. For practical purposes, anything which has an IGNITE_POINT should be treated as not fire-safe.
  
 
{{Category|Materials}}
 
{{Category|Materials}}
 
{{Category|Physics}}
 
{{Category|Physics}}

Latest revision as of 11:52, 22 June 2024

This article is about an older version of DF.

Fire-safe materials are those that are not damaged by fire. These materials include glass, most metal (everything but bismuth, lead, tin, zinc, and all three pewters) and most stone. Nether-cap is the only wood that can withstand fire (and even magma) thanks to its fixed temperature, but the game does not recognize it as a fire-safe building material. More esoteric fire-safe materials include ash, potash, pearlash, and dragon tallow soap "bars". Counterintuitively, Bituminous coal, lignite, charcoal, and coke are considered fire-safe, since they only catch fire when they're hot enough (see below).

For the purpose of job item requirements (e.g. in custom reactions or when constructing certain buildings), only bars, blocks, stone, logs, and anvils can be classified as "fire-safe materials" - 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 is not enough: it has to be magma-safe.

As far as the game is concerned, only materials which are stable at the temperature 11000 °U (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 fire can generate temperatures significantly higher - in particular, all burning items generate temperatures up to 200 degrees above their material's ignite point, so once a "fire-safe" item manages to get ignited (e.g. by exposure to magma), it can easily spread further. For practical purposes, anything which has an IGNITE_POINT should be treated as not fire-safe.