steel is weak to fire and water
Steel type Pokemon are weak against Fire, Fighting, and Ground type attacks
A fire and a fighting type Pokemon is good against steel.
Steel type Pokemon is super effective against: Ground, Fire, Fighting Steel type Pokemon are not effective against: Bug, Flying, Psychic, Ghost, Dark, Steel, Dragon, Grass, Normal, Ice, Rock. Steel type Pokemon are never effective by: Poison. Steel type Pokemon have a regular damage by (regular damage): Electric, Water. Hope this helps!
Steel is super effective against rock type pokemon.
water
fire
Steel type Pokemon are weak against fire, fighting, and ground types. So if you want to defeat a steel type Pokemon or catch one, make sure you use super-effective moves that are weak against steel type Pokemon.
Poison and Steel type moves are good against Fairy type Pokemon.
fire type
psychic type pokemon are weak against psychic steel and dark
If you want to know what Types of Pokemon that are Strong against STEEL-Type attacks there is ELECTRIC, WATER, STEEL and FIRE. I'll just add that STEEL-Type Pokemon are weak against FIGHT, FIRE and GROUND attacks.
pyruss/fire Fire, fighting, and ground is good against steel.