It can cut through STEEL
like it was rubber.
The Big Bang Theory Season 2, Episode 12
JON: We have dragonglass
and Valyrian STEEL.
Game of Thrones Season 8, Episode 2
How many Valyrian STEEL swords
are left in the Seven Kingdoms?
Game of Thrones Season 5, Episode 10
Where did you learn all this stuff about
Visenya and her Valyrian STEEL sword?
Game of Thrones Season 2, Episode 7
The original weapon was absurdly large.
Plenty of STEEL for two swords.
Game of Thrones Season 4, Episode 1