Metals

Stainless Steel.

Stainless steel has a high CO₂ footprint but a long lifespan and full recyclability. Used only where corrosion resistance is critical.

Key Figures

Carbon Footprint (GWP): 5.5 kg CO₂-eq/kg
Density: 8000 kg/m³
Expected Lifespan: 100+ år

What is stainless steel?

Stainless steel is steel alloyed with chromium (min. 10.5%) that forms a self-healing oxide layer. It is extremely corrosion-resistant, hygienic, and durable. Used for kitchens, bathroom fixtures, facade cladding, and industrial installations. High CO₂ footprint due to nickel and chromium additions.

Carbon Footprint Compared

Zinc ← this material 3.1 kg CO₂/kg

Copper 3.5 kg CO₂/kg

Stainless steel 5.5 kg CO₂/kg

Primary aluminium 8.24 kg CO₂/kg

Negative carbon footprint (green) indicates carbon storage. Data based on EPD averages from ECO Platform and estimates per EN 15804.

Typical Applications

check_circle Kitchen elements and work surfaces
check_circle Bathroom fixtures and fittings
check_circle Facade cladding (modern architecture)
check_circle Gutters in corrosive environments

In Renovation

Stainless steel is used in renovation for new kitchen surfaces, bathroom fixtures, and facade cladding in maritime environments. It is an expensive but extremely durable choice.

Questions about stainless steel

What are the different types of stainless steel?

304 (18-8) is standard for interior use. 316 contains molybdenum and is better for marine and corrosive environments (coastal cities, swimming pools). 430 is ferritic and magnetic — cheaper but lower corrosion resistance.

Does stainless steel require maintenance?

Stainless steel requires minimal maintenance — cleaning with water and mild soap. Chlorine-containing cleaning agents and marine environments can attack the surface. Fingerprints are visible on polished surfaces.

Can stainless steel be recycled?

Yes — stainless steel contains precious alloy (nickel, chromium) that is fully recycled. Scrap price is high. The recycling rate for stainless steel is over 85% globally.

Is stainless steel hygienic?

Yes — stainless steel is one of the most hygienic surface materials and is used in the food industry, hospitals, and laboratories. It is non-porous and does not support bacterial growth when correctly cleaned.

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