ISO 11054:2006

Overview

ISO 11054:2006 defines the designation of high-speed steel (HSS) groups used for manufacturing cutting tools such as taps, drills and end mills. The standard specifies group codes (for example HSS, HSS-E, HSS-PM, HSS-E-PM) to indicate production method and key alloy-class thresholds. ISO 11054:2006 addresses classification and labelling only - it does not specify chemical compositions (see ISO 4957 for composition and grade details).

Key topics

• Scope and purpose: Standardizes group-level designation for HSS cutting-tool materials to support clear product identification and procurement.
• Terms and definitions: Distinguishes conventional high-speed steel (ingot metallurgy) and powder metallurgy high-speed steel (PM process).
• Designation rules: Groups are assigned codes based on production process and alloy class thresholds:
  • HSS - conventional HSS with < 4.5% cobalt and < 2.6% vanadium
  • HSS-E - conventional HSS with ≥ 4.5% cobalt or ≥ 2.6% vanadium
  • HSS-PM - powder metallurgy HSS with < 4.5% cobalt and < 2.6% vanadium
  • HSS-E-PM - powder metallurgy HSS with ≥ 4.5% cobalt or ≥ 2.6% vanadium
• Manufacturer symbols: Allows supplementary symbols from manufacturers for fuller product descriptions.
• Examples: Illustrative mappings (from ISO 4957 grade names to ISO 11054 group codes) show practical use for product labelling.

Applications

ISO 11054:2006 is practical for:

• Tool manufacturers - consistent marking and specification of taps, drills, end mills and other HSS cutting tools.
• Procurement and inventory - clear purchasing specifications and stock classification using HSS group codes.
• Design and engineering - selecting appropriate HSS group based on intended application and tool performance expectations (conventional vs PM, cobalt/vanadium class).
• Quality assurance and documentation - standardized group identifiers for technical datasheets, certificates and labeling.
• Material suppliers - harmonized terminology when supplying HSS to the cutting-tool industry.

Related standards

• ISO 4957 - Tool steels; specifies chemical composition and grade designations for high-speed steels (refer to ISO 4957 for specific alloy compositions).
• Prepared by ISO/TC 29 (Small tools); ISO 11054:2006 is the second edition, replacing ISO 11054:1993.

Using ISO 11054:2006 ensures clear, internationally recognized group-level designation for high-speed steel cutting tools, improving communication between manufacturers, buyers and engineers while complementing composition standards such as ISO 4957.