Steel

Alloys · Common · Timeless

The defining material of the modern world. Steel is iron with a carefully controlled carbon content, typically 0.2% to 2.1%, which dramatically increases strength and hardness over pure iron. Every major structure in the modern world depends on it.

Identity

Source
Historical alloy: iron and carbon
Made from
Iron
Aliases
Carbon steel, Iron-carbon alloy

Physical Properties

Appearance
Bright silver-grey, maintains a metallic sheen, rusts to orange-brown without protection
Luster
Metallic
Density
7.85 g/cm³
Melting point
1370 °C
Boiling point
2750 °C
Lighter
Wootz Steel
Denser
Iron
Magnetism
Ferromagnetic
Electrical conductivity
Medium

Mechanical Properties

Mohs hardness
5.5
Tensile strength
1000 MPa
Softer
Orium
Harder
Celestial Siderite
Workability
Moderate
Brittleness
Moderate
Malleability
Moderate
Ductility
Moderate

Chemical Properties

Corrosion resistance
low
Reactivity
moderate

Lore & Narrative

The Bessemer process of 1856 transformed steel from a luxury material, expensive and slow to produce, into a mass commodity. Within decades, steel production increased a thousandfold, enabling railroads, skyscrapers, and industrial machinery that remade civilization.

Notable uses
Construction, transportation, weapons, machinery, appliances
Forge uses
construction, weapons, tools, machinery
Worldbuilding traits
ubiquitous, modern, structural, industrial

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