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Key terms: carbon steel surface low iron heating pack process case hardening layer bone formed hardness alloy quenched flame temperature cyanide needed inside outer solid compounds thin core resistance firearms depth gears pattern typical diffuse ferritic carbon content harder ammonia gaseous low carbon charcoal involves toughness atmosphere high carbon carbon steel part is heated wear resistance high temperature surface hardening induction hardening surface of the steel Search external links cited by footnotes on Wikipedia page Case hardening: |
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