Steel is weak to fire, fighting, and ground attacks in Pokémon games.

Quick Scoop: What Is Steel Weak To?

In the context of Pokémon, when people ask “what is steel weak to,” they almost always mean the Steel type in the games.

Core Weaknesses (Pokémon)

Steel-type Pokémon take super-effective damage from:

  • Fire-type moves
  • Fighting-type moves
  • Ground-type moves

A simple example:

  • A Fire Blast from a Fire-type Pokémon will hit a pure Steel-type for 2× damage.
  • A Close Combat (Fighting) or Earthquake (Ground) does the same.

Some Steel dual-types are even worse off, like Steel/Rock, which becomes 4× weak to Fighting and Ground because both its types share those weaknesses.

Why These Weaknesses Make Sense

Game designers matched these weaknesses to intuitive real‑world ideas:

  • Fire melts metal → Fire beats Steel.
  • Repeated or powerful blows cause metal fatigue and dents → Fighting beats Steel.
  • Earthquakes, pressure, and shifting ground can buckle rigid structures → Ground beats Steel.

Fans on forums often explain the “Fighting vs Steel” matchup using the idea of trained martial artists striking weak points in metal until it fails.

What Steel Resists (For Context)

Steel is famously strong defensively, which is why knowing “what is steel weak to” is so important in battles.

Steel-type Pokémon resist many types, taking reduced damage from: Normal, Flying, Rock, Bug, Grass, Ice, Psychic, Dragon, Steel, and Fairy moves.

They are also completely immune to Poison-type moves, unless a special ability like Corrosion is in play.

Outside Pokémon: Real-World “Weaknesses” of Steel

If you meant real-life steel rather than the game type, engineers talk about vulnerabilities like:

  • Corrosion and rust from moisture and corrosive environments
  • High heat, which can reduce strength or cause deformation
  • Fatigue from repeated loading and vibration
  • Poor protection against some chemicals or dissimilar-metal contact

These aren’t game “type matchups,” but they’re the real reasons steel structures need coatings, insulation, and careful design.

TL;DR: In Pokémon, steel is weak to Fire, Fighting, and Ground. In real life, steel is “weak” to corrosion, extreme temperatures, and fatigue over time.

Information gathered from public forums or data available on the internet and portrayed here.