case-hardened steel

NOUN
19 LETTERS · STARTS WITH C

case-hardened steel is a valid 19-letter word worth 24 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3A1S1E1-0H4A1R1D2E1N1E1D2S1T1E1E1L1
3 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 2 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 1 + 1 =24 PTS
DOUBLE WORD → 48TRIPLE WORD → 72
MEANING

What does case-hardened steel mean?

NOUN · 1 SENSE
1

Steel with a surface that is much harder than the interior metal.

BROADER