Meanings of metallic scraping in English

Every time the wind blew, it made a metallic scraping sound-eeeeuuuuurrrppp!-tryingtobreak free.

Then, more puzzling still, came a metallic scraping sound punctuated by an occasional shrill screech.

Sometimes the lock made a loud, metallic scraping noise.

The other girls followed behind her, and she pressed the rusty doorbell, which let out a metallic scraping sound.

At night, the sound of metallic scraping coming off the river, like two barges slowly crashing against each other.

The metallic scraping of their servos and motors was deafening and Zeus winced until they were well into the corridor.

There's a long-drawn-out metallic scraping crunching noise and the elephant makes a last baby-sized appearance in my lap, then we're down on the foredeck.

There is a weird metallic scraping sound that goes over the final Marvel Studios logo, which some have posited is a reference to Iron Man.