How strong / sharp is Celestial Bronze

Question

In the Percy Jackson universe how Strong/Sharp is celestial bronze compared to mortal weapons? And is there a in universe example?

Answer 1

I don't see anything in the books to suggest that it's drastically sharper than normal metals but it does have some decidedly odd powers when wielded by a magical being such as a god or a demi-god.

It doesn't cut humans.

The sword is celestial bronze. Forged by the Cyclopes, tempered in the heart of Mount Etna, cooled in the River Lethe. It’s deadly to monsters, to any creature from the Underworld, provided they don’t kill you first. But the blade will pass through mortals like an illusion. They simply are not important enough for the blade to kill.

It's not unstoppable

Percy tries to kill a Chimera. The blade glances off a rhinestone:

Riptide was now a shining bronze blade in my hands, and as the Chimera turned, I slashed at its neck. That was my fatal mistake. The blade sparked harmlessly off the dog collar. I tried to regain my balance, but I was so worried about defending myself against the fiery lion’s mouth, I completely forgot about the serpent tail until it whipped around and sank its fangs into my calf.

But it can cut through wood, Celestial Bronze armour and thin pipe steel:

We fought through the hearth, kicking up coals and sparks. Kronos slashed an armrest off the throne of Ares, which was okay by me, but then he backed me up to my dad’s throne. ‘Oh, yes,’ Kronos said. ‘This one will make fine kindling for my new hearth!’ Our blades clashed in a shower of sparks. He was stronger than me, but for the moment I felt the power of the ocean in my arms. I pushed him back and struck again – slashing Riptide across his breastplate so hard I cut a gash in the celestial bronze.

and

Luke hacked downwards and I rolled behind a deckchair. I tried to stand, but my leg wouldn’t take the weight.
‘Perrrrrcy!’ Grover bleated.
I rolled again as Luke’s sword slashed the deckchair in half, metal pipes and all.