Skip to content
⚙️ Metales

🔩Acero

El caballo de hierro–carbono de edificios, barcos y raíles, refundido sin fin.

También llamado: acero al carbono · structural steel · iron–carbon alloy

Acero — Wikimedia lead image
ArcelorMittal Kryvyi Rih · CC BY-SA 4.0

Datos clave

7.85 g/cm³Density
1370–1530 °CMelting
~200 GPaE-modulus
Euroclass A1Fire
Highly recyclableLoop
metalsFamily

Acero is one of 32 materials in this atlas, grouped under metals: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.

Scores compare Acero with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates.

Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.

Introducción profunda

Deep dive: Acero

Acero (Fe–C (±Mn, Si, Cr…)) is a family of grades whose density 7.85 g/cm³, heat band 1370–1530 °C, and fire letter A1 as construction steel.

What “the material” actually is

Acero is sold as grades, not as a single substance. Chemistry Fe–C (±Mn, Si, Cr…), density 7.85 g/cm³, heat band 1370–1530 °C.

This atlas treats Acero as a system: mill route, coatings, tests and the cavity it sits in.

Heat, fire and insulation

Conductivity note: ~50 W/m·K. Insulation score 8/100 is relative to 32 entries — metals lose, VIPs and aerogels win.

Fire letter in editorial use: A1 as construction steel. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.

How it is made and used

Origin: bloomery c. 1800 BCE / Bessemer 1856, Anatolia → Sheffield. The process chapter follows feedstock → conversion → forming → finish → install.

Uses span construction to packaging. Pairings matter: Concrete.

Market and circularity

Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.

Circularity mark 64/100. Ask which scrap, which certificate, which year.

Perfil

88728488064
Resistencia 88
Resistencia al calor 72
Prestación al fuego 84
Aislamiento 8
Trabajabilidad 80
Circularidad 64

Siete capítulos

Preguntas frecuentes

Is steel non-combustible?
As a metal it is Euroclass A1, but it loses yield in fire and usually needs protection for a rated duration.
Acero vs iron?
Acero is iron with controlled carbon (typically <2%) and alloys; cast iron has more carbon and a different solidification path.
Does steel insulate?
No. Thermal conductivity is tens of W/m·K. Insulation is a separate layer (mineral wool, boards, VIP).
Why does steel rust?
Iron oxidises in the presence of water and oxygen. Alloys, zinc, paint or concrete cover slow that.
Is stainless “stainless” forever?
No. Chlorides, crevices and wrong grades pit. 304 vs 316 is a chemistry choice, not a slogan.
Can steel be recycled endlessly?
Magnetically, yes as a family. Copper contamination and coatings constrain some high-spec loops.
What is AHSS?
Advanced high-strength steels (dual-phase, TRIP, martensitic) used to lighten car bodies while keeping crash performance.
Green steel — real or label?
Hydrogen-DRI and high-scrap EAF cut process CO₂. Certificates vary; ask which route and which year.

Iconos

Bessemer converter

Bessemer converter

United Kingdom · 1856–

Bessemer converter is a reference point in the public image of Acero.

2

Damascus / Wootz

India / Levant · antiquity

Damascus / Wootz is a reference point in the public image of Acero.

3

POSCO Gwangyang

South Korea · 1987–

POSCO Gwangyang is a reference point in the public image of Acero.

Cor-Ten weathering

Cor-Ten weathering

United States · 1933–

Cor-Ten weathering is a reference point in the public image of Acero.

Dual-phase AHSS

Dual-phase AHSS

Global auto · 1970s–

Dual-phase AHSS is a reference point in the public image of Acero.

Tamahagane tatara

Tamahagane tatara

Japan · traditional

Tamahagane tatara is a reference point in the public image of Acero.

7

Sheffield crucible

United Kingdom · 1740–

Sheffield crucible is a reference point in the public image of Acero.

Blast furnace

Blast furnace

Global · medieval–

Blast furnace is a reference point in the public image of Acero.

Activa o desactiva iconos: cada barra se reescala al líder de tu selección.

5 / 8

Enfrentamientos

Misma familia, otras notas — elige un duelo.

Materiales similares

Vecinos más cercanos en los seis ejes del atlas.

Más en Metales