ISO 16020:2005

Overview - ISO 16020:2005 (Steel for the reinforcement and prestressing of concrete - Vocabulary)

ISO 16020:2005 is an international vocabulary standard that defines terms and symbols used in the field of reinforcing and prestressing steel for concrete. Its purpose is to promote consistent, worldwide use of common terminology for steel used as reinforcement (rebar) and prestressing elements in concrete structures. The standard includes English and French official terms and gives equivalent German, Spanish and Norwegian terms (under national responsibility).

Key topics covered

The standard organizes terminology into clear thematic sections:

• Types of reinforcing and prestressing steel
  • Definitions for items such as prestressing steel, reinforcing steel, bars (hot‑rolled, cold‑reduced, stretched), rod and related products.
• Geometrical features
  • Standardized terms for cross‑sectional shapes, surface profiles (plain, ribbed, indented) and coil/straight supply forms.
• Mechanical properties
  • Vocabulary related to tensile, compressive and other mechanical characteristics as used in specification and testing contexts.
• Miscellaneous terms and symbols
  • Additional definitions, a symbols list, and multilingual alphabetical indexes to support cross‑reference and translation.
• Annex A (informative)
  • Schematic illustrations of manufacturing processes for reinforcing steel to clarify production‑related terminology.
• Supporting material
  • Bibliography and alphabetical indexes in multiple languages for easier lookup.

Practical applications - who uses ISO 16020

ISO 16020 is valuable for anyone who specifies, manufactures, tests, uses or regulates steel reinforcement and prestressing products:

• Structural and civil engineers - to ensure consistent specification language in design documents and reports.
• Standards writers and regulators - to harmonize terminology across codes, technical regulations and procurement documents.
• Manufacturers and suppliers of rebar, prestressing wire/strand and rod - to describe products and manufacturing processes unambiguously.
• Testing laboratories and quality control teams - to align test reports and material certificates with accepted term definitions.
• Academics, educators and translators - for accurate teaching materials and multilingual technical texts.

Related standards and references

• ISO 16020 was prepared by ISO/TC 17 (Steel), SC 16 (Steels for the reinforcement and prestressing of concrete) and is intended to be used alongside other ISO and national standards covering material specifications, testing methods and product requirements.
• Equivalent language entries are published under the responsibility of national bodies (DIN, AENOR, SN).

Keywords: ISO 16020, reinforcing steel vocabulary, prestressing steel terminology, rebar terminology, steel for concrete, reinforcement vocabulary, prestressing vocabulary.