Overview
ISO 14919:2023 - Thermal spraying - Wires, rods and cords for flame and arc spraying - Classification and technical supply conditions defines how metal and non‑metal feedstock (solid and cored wires, rods and cords) used for arc and flame thermal spraying are classified and supplied. The third edition (2023) updates material coverage and supply requirements to help manufacturers, specifiers and quality teams select and control spray consumables consistently.
Key topics and technical requirements
- Classification by manufacturing process and structure - solid wire/rod, powder‑metallurgical wire/rod, cored and folded wires, cords (extruded), and oxide ceramic rods are categorized by production route and internal structure.
- Material groups and chemical composition - detailed material groups (tin, zinc, aluminium, copper, iron, nickel, molybdenum, oxide ceramics) with composition limits are provided in Tables 3–10 to standardize alloy identity and performance expectations.
- Sizes and tolerances - dimensions and manufacture tolerances for wires, rods and cords to ensure feedability and process reproducibility.
- Properties - mechanical and surface properties plus workability requirements (for example wire winding) relevant to spraying performance.
- Designation and technical supply conditions - standardized naming, forms of delivery, identification, packaging, storage and inspection documentation are specified to support traceability.
- Inspection documents - requirements for documentation and certificates accompanying deliveries (see clause on inspection documents).
Notable update: the 2023 edition adds specific Zn‑Al alloy variants (ZnAl2, ZnAl4, ZnAl22) to the zinc alloy table.
Practical applications and users
Who uses ISO 14919:2023:
- Thermal spray feedstock producers and alloy manufacturers - for product classification, composition control and labelling.
- Thermal spray operators and coating suppliers - to select appropriate wires/rods/cords for arc and flame spraying processes.
- Specification writers, OEMs and procurement teams - to write clear purchase and quality requirements for spray consumables.
- Quality assurance and inspection personnel - to verify dimensions, composition, packaging and documentation conformity.
- Surface engineering and repair workshops - to ensure consistent coating feedstock and predictable coating properties.
Practical benefits:
- Ensures consistent feedstock selection and interchangeability across suppliers.
- Reduces process variability through standardized dimensions, chemistries and documentation.
- Improves traceability and conformity for safety‑critical or high‑value coatings.
Related standards
- ISO 544:2017 - Welding consumables - Technical delivery conditions for filler materials and fluxes (relevant for product dimensions and markings).
- ISO 10474:2013 - Steel and steel products - Inspection documents (relevant for inspection and certification).
Keywords: ISO 14919:2023, thermal spraying, wires rods cords, flame spraying, arc spraying, classification, technical supply conditions, spray consumables, alloy composition, feedstock specification.
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