hot metal

Forge-fresh iron bar

Hot metal refers to typesetting technology where molten lead alloy is cast into type for printing—the dominant method from the late 1800s until phototypesetting and digital publishing displaced it in the mid-20th century.

The term distinguishes this process from "cold type" methods that don't involve casting.

In steelmaking, hot metal is molten iron tapped from a blast furnace before conversion to steel.

Related

foundry · type foundry · letterpress · stereotype · blast furnace · basic oxygen furnace · linotype · Bessemer process · brass · crucible · smelting · matrix · welding · font · galley · casting · embers · steelmaking

Opposites
temperature state

hot metalcold steel

Edged weapons collectively

cold iron

physical state/workability

hot metaltempered steel

Heat-strengthened metal alloy

printing technology

hot metalcold type

Typesetting without heated metal

phototypesetting · offset printing · desktop publishing

Family

hot, metal, heated, melted, heater, metallic, malleable, hotly, smelt

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G