Aluminium in 1970: Extrusion architecture
The behaviour of Aluminium is written as 1970’s “Extrusion architecture,” fixed by 2000. An advert’s adjective is not a melting point. “Room temperature” alone is not a figure. Strength is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
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. Circularity mark 72/100. Ask which scrap, which certificate, which year. Related atlas entries, a short glossary, and three threads that keep Aluminium honest. Heavier, stiffer, cheaper per kilogram of structure in many buildings.
“Extrusion architecture” for Aluminium in 1970 carries 2000. Praise without that figure is not a property.1970
Figures to keep
- Year of the condition
- 1970
- Property figure
- 2000
- Material
- Aluminium
- Use line
- Extrusion architecture
Aluminium in 2000: Light vehicles and recyclingNext essayAll 1000 essays1000