ISO K — Cast Iron · K10

K10 — Grey cast iron (hard)

Hardness range: 200–280 HB. Part of the ISO K — Cast Iron group. Cast iron is abrasive and brittle — short chips, no built-up-edge. CVD alumina (Al₂O₃) coatings resist the high-temperature abrasion. Dry machining is acceptable for grey iron; coolant helps with nodular grades. Main failure mode: flank wear. High-speed machining is effective.

Material profile — K10
ISO designation
K10 (ISO K — Cast Iron)
Material
Grey cast iron (hard)
Hardness
200–280 HB
ISO group colour
Cast Iron
Tooling guidance — K-group
Group summary
CVD alumina coatings excel. Dry machining acceptable for grey CI. Abrasive wear is the main failure mode.
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