Easy way to tell the difference between

[KoppaK]

Cast steel and cast iron??????

[Briz]

Attack it with a grinder; cast iron makes darker red sparks, steel brighter yellow ones.
What part is it?

[Knowledge]

Another way is to rub a patch off with some wet n dry till it's shiny. Clean it off with some solvant so there's no 'dust' left, then rub over the patch with your thumb or even some white paper. Cast iron usually has 'free carbon' so it comes off like a pencil, steel doesn't. NOTE: this isn't fool proof.

[KoppaK]

Attack it with a grinder; cast iron makes darker red sparks, steel brighter yellow ones.
What part is it?2 stroke motorcycle barrel.

[kapri]

Drop it on the floor .,cast iron will crack, works for me everytime .

[KoppaK]

What motorcycle John ?


FS1E Mr Ratty sir and no it's not mine.

[rem]

To (mis)quote John Travolta "...it's not a motorcycle, it's a moped, baby..."

[ian.stewart]

One way to tell is file a patch clean, Cast iron is Grey and steel is Silver in colour, With the filings that have come off the barrel, rub them between your fingers, Cast Iron will leave a grey powder in your fingers and Steel will leave nothing,
Of coure the Barrel could be cast steel, just to add to the confusion

[Briz]

Cast iron old chap , and an aftermarket big-bore barrel will be **** iron at that :D

Yep. Barrels are never cast steel. Iron has a graphite conrent which gives a bit of a self lubricating quality. A steel cylinder would be too prone to seizure, unless it had an iron liner, which would make the use of steel pointless.

[Paul]

To (mis)quote John Travolta "...it's not a motorcycle, it's a moped, baby..."

it was Bruce Willis...

[Skimmer]

I knew you'd get yourself involved in that rebuild, you just cant help yourself can you....haha
FS1E Mr Ratty sir and no it's not mine.

[rem]

it was Bruce Willis...

Of course it was - misquoted and misnamed! <|:-(