Steel doesn't decay — it seals itself.

0.42

Year 1

0.19

Year 3

0.08

Year 6

0.03

Year 10

0.01

Year 20

This is the RCR Weathering Steel design system, applied by Curio Design — a design-style library for AI agents. Full RCR Weathering Steel guide → designbycurio.com/learn/rcr-arquitectes-corten-shadow