An interesting disaster

[Shakethetrees]

Originally Posted by Kubur

your sword was made of badly forged Iron covered with cooper or brass...
IMHO

Best,
Kubur

Nope. If you look closely you can see the granular texture of cast brass.

The inclusion could have some stray iron from filings or some other source giving you the red powder you mention.

The process of covering an iron blade with brass is time consuming and counterproductive, and the visual evidence clearly shows its a casting.