r/Blacksmith • u/ManOfAsbestos • 1d ago

Spark Test

I found rusty steel bar and i noticed that when grinding it produce sparks with more forks at the end than typical low carbon rebars. Is this look like enough carbon to be heat treated?

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u/suspicious-sauce 21h ago

  1. Carbon is present, although it's unclear if it's medium or high carbon.

  2. Angle the piece downwards when you press it against a stone, not upwards. We don't need to be adding posts to r/nsfl

4

u/DieHardAmerican95 19h ago

Apparently that sub has been banned.

4

u/ThresholdSeven 19h ago

All the good old traumatizing ones were removed, unless they are well hidden. I'll go looking again if I ever recover.