Frostcast Iron
TTRPG Fictional · Uncommon · Timeless
Iron that has been quenched not in water or oil but in the concentrated essence of a glacial winter: the breath of a frost giant, the condensed cold of a blizzard sustained for a century, or the tears of a winter deity. The extreme cold restructures the iron's crystalline grain into unique geometric patterns that trap thermal energy.
Identity
- Source
- Original by MGS
- Aliases
- Winterbound iron, Glacial steel, Ice-tempered iron
Physical Properties
- Appearance
- Pale blue-white with internal snowflake-like crystalline structures visible through the metal, perpetually cold to the touch, exhales a faint mist in warm environments
- Luster
- Metallic
- Density
- 7.2 g/cm³
- Melting point
- 1490 °C
- Boiling point
- 2800 °C
- Lighter
- Chromium
- Denser
- Tin
- Magnetism
- Ferromagnetic
- Electrical conductivity
- High
Mechanical Properties
- Mohs hardness
- 8
- Tensile strength
- 520 MPa
- Softer
- Tungsten
- Harder
- Chromium
- Workability
- Difficult
- Brittleness
- Brittle
- Malleability
- Low
- Ductility
- Low
Chemical Properties
- Corrosion resistance
- high
- Reactivity
- low
Lore & Narrative
A frostcast iron blade pressed against a wound cauterizes it with cold rather than heat, a sensation described as intensely painful but which leaves no scarring. The metal is brittle at room temperature but becomes significantly tougher in freezing conditions. It is a weapon designed for winter warfare.
- Notable uses
- Winter warfare weapons, cold-region armor, cryomantic ritual tools
- Forge uses
- winter weapons, cold armor, ritual tools
- Worldbuilding traits
- cold, winter, crystalline, brittle-in-warmth
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