Aluminium in 1825: Ørsted / Wöhler isolation
Read the condition on Aluminium before the nickname. Year 1825, line “Ørsted / Wöhler isolation,” figure 2. Aluminium is one of 32 materials in this atlas, grouped under metals: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number. Aluminium (Al (+ Mg, Si, Cu, Zn…)) is a family of grades whose density 2.70 g/cm³, heat band 660 °C, and fire letter A1 as metal.
Aluminium is sold as grades, not as a single substance. Chemistry Al (+ Mg, Si, Cu, Zn…), density 2.70 g/cm³, heat band 660 °C. This atlas treats Aluminium as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: ~237 W/m·K (pure). Insulation score 12/100 is relative to 32 entries — metals lose, VIPs and aerogels win.
Fire letter in editorial use: A1 as metal. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide. Origin: Hall–Héroult 1886, USA / France. The process chapter follows feedstock → conversion → forming → finish → install. Uses span aerospace to consumer. Pairings matter: CFRP.
The label keeps Aluminium, 1825, and 2. “Ørsted / Wöhler isolation” is the condition on the figure.1825
Figures to keep
- Year of the condition
- 1825
- Property figure
- 2
- Material
- Aluminium
- Use line
- Ørsted / Wöhler isolation