No, the Brompton pedals are fine.. they mailed a new one free, when I was able to show a stress crack .. (macro picture)
Did not ask for proof of sale, It as on used bike I bought, they replaced it anyhow..
better the core, I had to buy a 24mm socket and grind the end flat to get the older pedal off.. new one is easier..
they make that piece in Titanium too..
..