Just making it its own thread to make it an easy find

The difference between iron and steel
Daz was made of iron
More
Even more
East blue zoro can’t cut iron bars
Don krieg’s armor is made from a specific steel
Little garden Zoro couldn’t cut Mr. 3’s iron hard wax
More Zoro saying he needed to cut iron to cut daz
Luffy breaking steal and Zoro cutting iron
Zoro being able to cut stone and iron but not steal post kaku fight
The pacifista being made of even harder material than iron like steel
If the manga isn’t proof enough
Number 6 explains the inconsistency in the anime
https://gamerant.com/one-piece-inconsistencies-introduced-by-anime-filler-arcs/
And more evidence from someone who reads Japanese
https://www.fanverse.org/goto/post?id=66937700
Now all together
Zoro learned to cut iron against daz with lion song
Zoro still struggled against Ohm’s iron whip while knowing how to cut iron because he could only do it with lion song. Him deflecting the iron whip instead of straight up cutting it
Zoro fights another iron man with Kaku and while he could get through his iron body technique with LS Kaku didn’t give him the opportunity
Zoro could damage but couldn’t cut kuma’s pacifista body with LS because it was made of steel not iron
Same with the pacifista
Post timeskip tho? After zoro actually learned to use haki shit became a lot easier
Can slice through a pacifista himself
Can casually slice through iron like nothing
The first time we see him using his new upgraded lion song aka death lion song being against the red punk hazard dragon

The difference between iron and steel
Daz was made of iron
More












Even more
East blue zoro can’t cut iron bars

Don krieg’s armor is made from a specific steel

Little garden Zoro couldn’t cut Mr. 3’s iron hard wax
More Zoro saying he needed to cut iron to cut daz



Luffy breaking steal and Zoro cutting iron

Zoro being able to cut stone and iron but not steal post kaku fight

The pacifista being made of even harder material than iron like steel


If the manga isn’t proof enough
Number 6 explains the inconsistency in the anime
https://gamerant.com/one-piece-inconsistencies-introduced-by-anime-filler-arcs/
And more evidence from someone who reads Japanese
https://www.fanverse.org/goto/post?id=66937700
Now all together
Zoro learned to cut iron against daz with lion song

Zoro still struggled against Ohm’s iron whip while knowing how to cut iron because he could only do it with lion song. Him deflecting the iron whip instead of straight up cutting it

Zoro fights another iron man with Kaku and while he could get through his iron body technique with LS Kaku didn’t give him the opportunity


Zoro could damage but couldn’t cut kuma’s pacifista body with LS because it was made of steel not iron


Same with the pacifista



Post timeskip tho? After zoro actually learned to use haki shit became a lot easier
Can slice through a pacifista himself

Can casually slice through iron like nothing

The first time we see him using his new upgraded lion song aka death lion song being against the red punk hazard dragon



