SPA-H is a - noticeably comparable to classic weathering steels such as Corten‑A, Corten‑B, Q355NH, Q450NQR1.
1. Compared with SPA‑C (the most direct comparison)
2. Compared with standard Corten‑type weathering steels
SPA-H is fully capable for long‑term structural use: bridges, buildings, landscapes
3. Compared with high‑strength structural weathering steels (Q355NH, Q460NH)
SPA-H is optimized for weather resistance + moderate strength
4. Performance in different environments
:SPA-H performs very well, with slow, stable corrosion.
.
, SPA-H performs , though not as good as stainless steel.
5. Summary of level
Corten / Q355NH
