— Materials & finishes
Good design starts with good materials.
We select the steel according to the application, the environment and the performance required. From hot-rolled corten to marine AISI 316L stainless, every material guarantees durability and beauty for decades.
Request a quote →Material comparison
- Hot rolled corten
- Outdoor★★★★★Coastal★★★Structure★★★★★MaintenanceVery low
- Cold rolled steel
- Outdoor★★★Coastal★Structure★★★MaintenanceMedium
- Stainless 304
- Outdoor★★★★Coastal★★Structure★★★★MaintenanceVery low
- Marine stainless 316
- Outdoor★★★★★Coastal★★★★★Structure★★★★★MaintenanceVery low
- Galvanised
- Outdoor★★★★★Coastal★★★Structure★★★★★MaintenanceVery low
| Material | Outdoor | Coastal | Structure | Maintenance |
|---|---|---|---|---|
| Hot rolled corten | ★★★★★ | ★★★ | ★★★★★ | Very low |
| Cold rolled steel | ★★★ | ★ | ★★★ | Medium |
| Stainless 304 | ★★★★ | ★★ | ★★★★ | Very low |
| Marine stainless 316 | ★★★★★ | ★★★★★ | ★★★★★ | Very low |
| Galvanised | ★★★★★ | ★★★ | ★★★★★ | Very low |
Natural and controlled oxidation
Corten Collection
Hot-rolled corten steel with a protective patina. Let it evolve or stabilise it with a clear varnish (renew every 5-7 years).
Raw Corten
Natural oxidation, untreated. Irregular texture, every piece unique.
Heritage Corten
Controlled oxidation with activator, unsanded. Natural texture, adjustable tone.
Amber Corten
Controlled oxidation with hand sanding. Silky surface, amber tones.
Delivered ready
We prepare the corten in our own workshop: it can be delivered already oxidised and controlled, patina done, so it arrives at your home or site with its final look from day one.
Cold rolled steel
Black Collection
Dark finishes on cold rolled steel with dedicated outdoor protection.
Natural Oxide
Sealed natural oxide, warm living tone.
Dark Oxide
Uniform dark oxide, deep matte.
Black Texture
Hammered texture with a tactile surface.
Black Satin
Satin black, elegant and even.
Graphite Black
Contemporary graphite with soft reflections.
Powder Coat RAL
Oven-baked coating in any RAL colour, matte or textured.
Architectural stainless
Stainless Steel 304
For interiors and non-coastal exteriors. Minimal maintenance and premium finishes.
Brushed
Directional brushing, the architectural classic.
Satin
Soft satin, controlled reflection.
Mirror
High-gloss mirror polish.
Black PVD
High-hardness black PVD coating.
Maximum resistance
Marine 316 & Galvanised
Marine AISI 316L stainless for salty environments and hot-dip galvanising for exposed structures.
Marine 316L
Seafront, pools and chlorine.
Hot-dip galvanized
Long-lasting structural protection.
Care & maintenance
Rinse with clean water, avoid harsh chemicals and renew the protective coating periodically. Corten keeps evolving naturally into an ever more stable patina.
— Start your project
Request the
catalogue.
Fill in the form and let us get to know you a little better so we can send you the catalogue.
- Studio
- Catalonia, Spain
- hola@geasteel.com
- Service area
- Spain · France · Andorra · Portugal