01 Feedstock
Ore, monomer, fibre, mineral or scrap that can legally become ステンレス鋼.
ステンレス鋼 · クロム不動態皮膜で炭素鋼のように錆びない厨房・化学・外装。
Making ステンレス鋼 is a chain: feedstock, conversion (1913 Brearley / Strauss), forming, heat, finish, install.
Skip a step and the properties chapter is describing a different object.
Ore, monomer, fibre, mineral or scrap that can legally become ステンレス鋼.
1913 Brearley / Strauss
Cast, spin, weave, sinter, foam, laminate or coat — the step that sets anisotropy.
Temper, vulcanise, calcine or dry: skip it and the datasheet is fiction.
Coatings, sizings, facers, galvanizing, anodising, painting.
Fasteners, adhesives, DFT, compression, dryness — site quality is a material property.
Virgin route around Sheffield / Essen.
ステンレス鋼 has a real loop when sorting is honest.
High-spec grades leave the commodity mill.
Coatings, sprays, casts — the factory is sometimes a jobsite.
Feedstock to installed product.
Energy in, class out.
Melting/softening ~1400–1450 °C; conductivity ~15 W/m·K (austenitic).
Moisture, UV, chlorides, alkalis or oxygen — pick the one that actually kills ステンレス鋼.
Fire class A1 metal is a starting letter, not a wall rating.
Process energy and scrap quality belong in the carbon passport, not in a footnote.