Buildings
Structure, lining, insulation or finish depending on family.
Acier inoxydable earns its keep in systems: a beam, a batt, a fibre blend, a coated steel — rarely a lone coupon.
Products below are cultural landmarks as much as SKUs.
Secteurs
Transport
Mass, fire and fatigue rewrite the grade list.
Energy
Heat, voltage and hydrogen compatibility.
Consumer
The volume that pays for the mill.
Medical / food
When allowed — extractables and allergies matter.
Defence / safety
Ballistics, FR clothing, fire stops.
Produits
Harry Brearley
1913
Chrysler Building crown
1930
Gateway Arch
1965
304 sink
postwar
Duplex riser
1980s–
Shinkansen skin bits
1964–
Surgical 316L
20th c.–
Krupp V2A
1912
Appariements
steel
The parent without the chromium film.
titanium
When chlorides beat even 316.
copper
Different corrosion colour language.
glass
The other hygienic surface in pharma.
If the pairing is wrong, the material will be blamed for a system fault.
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Acier
Le fer–carbone des bâtiments, navires et rails, sans cesse refondu.
Global 66 🥫Aluminium
Métal léger des cuves Hall–Héroult : peaux d’avion, canettes, façades.
Global 59 ✈️Titane
Haute résistance spécifique et films résistants aux chlorures.
Global 58 🔶Cuivre
Premier conducteur industriel : câbles, échangeurs, toits verts.
Global 57