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
Also known as
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

Sources

  • Original to this catalogue, Michael Ghelfi Studios

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