Yes. We know there exists blunt immune alloys that are able to block whitebeard.
We don’t know if the seraphim are normal metal but we know kuma metal plating is already beyond Steel. So the seraphim are likely stronger than steel in base; with the lunarian multiplier
We don’t know if the seraphim are normal metal but we know kuma metal plating is already beyond Steel. So the seraphim are likely stronger than steel in base; with the lunarian multiplier