ISO P — Steel · P30
P30 — Case-hardened steel
Hardness range: 58–62 HRC surface. Part of the ISO P — Steels group. Steel is the most widely machined material. Carbon and alloy steels are the target material for the majority of turning and milling operations. Hardness ranges from ~125 HB (low-carbon) to 350 HB (high-strength structural). CVD-coated carbide (TiCN/Al₂O₃ multilayer) dominates. Positive geometry for finishing, negative for heavy roughing.
Material profile — P30
- ISO designation
- P30 (ISO P — Steels)
- Material
- Case-hardened steel
- Hardness
- 58–62 HRC surface
- ISO group colour
- Steel
Tooling guidance — P-group
- Group summary
- CVD-coated carbide at Vc 200–400 m/min. Positive geometry for finishing, negative for roughing.
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