Material for Soldering Iron Tip

[Norman Billingham]

I've seen the pin from a 15A round pin plug used too.

As others have said it will be 3/16 diameter copper (if it's as old as mine it was made long before metrication). You can get 3/16 round copper bar for £3 a foot including VAT and carriage from Chronos:

[Steve Walker]

>>> Phew!

Thanks Andy, and everyone else who's helped

[Steve Walker]

Well worth a look folks!