ISO 2107:2023
ISO · 2023-08
Aluminium and aluminium alloys — Wrought products — Temper designations
术语
ICS 25.200
1Key Takeaways
This document establishes temper designations as required for identification for all product forms of wrought aluminium and aluminium alloys.
2Expert Interpretation
This article deeply interprets the ISO 2107:2023 international standard on the state code system of aluminum and aluminum alloy processing products, covering the technical meanings of the five basic states of F/O/H/W/T and their sub-codes. It analyzes the influence mechanism of processes such as work hardening, annealing, and solution heat treatment on material properties, and provides a state selection guide in typical application scenarios.
Analysis of the core content of the standard
| Basic state code | Process characteristics | Typical applications |
|---|---|---|
| F | Processing without controlled hardening or thermal conditions | Primary formed products |
| O | Annealed to the softest state | Parts requiring deep forming |
| H | Work hardening (can be combined with local annealing) | 5xxx series non-heat-treatable alloys |
| W | Natural aging after solution heat treatment | Laboratory test state |
| T | Precipitation hardening heat treatment | 6xxx/7xxx series alloys |
H state subdivision technical specifications
Taking H116 state as an example, it is applicable to 5xxx series alloys with Mg content ≥3%:
- The final process needs to achieve stable tensile properties
- Pass accelerated corrosion test (intergranular/exfoliation corrosion)
- Continuous use temperature ≤65℃
T7X over-aging state comparison
| State code | Strength retention rate | Corrosion performance |
|---|---|---|
| T73 | Lowest | Optimal stress corrosion resistance |
| T76 | Medium | Balanced |
| T77 | Close to T6 | Class T76 |
Implementation suggestions
- Select H32 state for ship decks and other bending processing scenarios
- Priority is given to aviation structural parts class=instrument>T74 state to balance strength and corrosion resistance
- 5xxx series products with high magnesium content are marked with H321 to ensure thermal stability
Explanation of standard evolution
Main updates of the 2023 version:
- Added Chapter 2 Normative References
- Refined O state subclassification (O1/O3)
- Added Appendix A for special regional codes
3Version History
5Citation Network
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6Frequently Asked Questions
What is ISO 2107:2023?
ISO 2107:2023 — Aluminium and aluminium alloys — Wrought products — Temper designations is an international standard developed by International Organization for Standardization (ISO). This document establishes temper designations as required for identification for all product forms of wrought aluminium and aluminium alloys.
What does ISO 2107:2023 cover?
This standard covers: This document establishes temper designations as required for identification for all product forms of wrought aluminium and aluminium alloys.
Who should use this standard?
This standard is intended for organizations, professionals, and stakeholders involved in various industries and sectors. It is applicable to manufacturers, service providers, regulatory bodies, and certification organizations.
What is the latest version of ISO 2107:2023?
The current published version is ISO 2107:2023, published on 2023-08. Always check for amendments or pending revisions.
How do I purchase ISO 2107:2023?
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