Overview
ISO 15201:2006 - Zinc and zinc alloys - Castings - Specifications defines requirements for zinc alloy castings produced by pressure die, permanent mould or sand casting (and other casting processes). The standard covers alloy designation, chemical composition, marking and labelling, manufacturing inputs, sampling and chemical analysis procedures, and inspection documentation. Annexes include a recycling mark, cross‑reference to national alloy designations, and typical properties of die‑cast alloys at 20 °C.
Key topics and requirements
- Casting designation: Alloys use the ISO 301 system with a letter P in the second character to indicate a casting (e.g., ZP0410; short designation ZP5).
- Chemical composition: Tableed composition limits for common zinc alloys (examples: ZP0400/ZP3, ZP0410/ZP5, ZP0430/ZP2, ZP0810/ZP8, ZP1110/ZP12, ZP2720/ZP27). Castings must conform to these mass‑fraction limits.
- Manufacture: Acceptable feedstock includes ISO 301 ingots/liquid, die‑caster process returns (sprues, runners), and rejected castings (excluding metallic‑coated castings). Contaminating materials are prohibited.
- Sampling and analysis: Routine sampling frequency is at the supplier’s discretion; in disputes, wet chemical ISO methods are used on non‑coated samples (coating removal requires expertise). A defined rounding procedure applies to analytical results.
- Marking & labelling: Castings should be marked with producer’s mark, short designation, recycling mark (per ISO 7000 symbol 1135), and production period where possible. Packaging should be identified (alloy number, colour code).
- Inspection document: On request, suppliers must provide documentation per EN 10204 (test certificates) or a supplier’s declaration of conformity.
Applications and users
ISO 15201 is practical for:
- Die casters, foundries and heat‑treat shops specifying acceptable alloys and process returns.
- Quality managers and metallurgists responsible for chemical compliance, sampling and analysis.
- Procurement and design engineers who require consistent alloy designation, traceability and marking on zinc alloy castings.
- Manufacturers of hardware, automotive components, electronics housings and consumer products using zinc die castings where specification and traceability matter.
Using ISO 15201 helps ensure material consistency, regulatory compliance, and clear communication between purchasers and suppliers of zinc alloy castings.
Related standards
- ISO 301 (zinc alloy ingots intended for casting) - designation system referenced by ISO 15201
- ISO 7000 (graphical symbols) - recycling mark symbol 1135
- EN 10204 - types of inspection documents
- Referenced national standards and equivalents listed in Annex B (JIS, AS, ASTM mappings).
