Just bought an angle grinder diamond disc that says it's suitable for
"brick, concrete, tiles and cast iron".

Does that mean it's suitable for cast iron only and not other metals
such as steel? And if so, why?

wrote:

Does that mean it's suitable for cast iron only

Yes

and not other metals
such as steel?

No

And if so, why?

Cast iron is full of grains of free carbon, which act as a lubricant
when cutting. Although steel also contains carbon, it's bound to the
iron in the steel and doesn't have this lubricating effect.

wrote:

Just bought an angle grinder diamond disc that says it's suitable for
"brick, concrete, tiles and cast iron".

Does that mean it's suitable for cast iron only and not other metals
such as steel? And if so, why?

that doesnt stop it cutting steel, but it may not last as well doing so


NT

wrote:
Just bought an angle grinder diamond disc that says it's suitable for
"brick, concrete, tiles and cast iron".

Does that mean it's suitable for cast iron only and not other metals
such as steel? And if so, why?

See my experience of cutting cast iron! http://tinyurl.com/y9uysr (or
http://groups.google.co.uk/group/uk.d-i-y/browse_frm/thread/ab6c684094ad24f7/d97e8d54a3e7fd46?lnk=st&q=&rnum=1&hl=en#d97e8d54a3 e7fd46)

David

Thanks for the replies Andy, NT and David.