Corten-Bettlaken

Corten flat sheets stand out for their Haltbarkeit, Korrosionsbeständigkeit, and unique aesthetic compared to ordinary carbon steel. Ihre fabrication processes—cutting, Biegen, Schweißen, and surface treatment—allow for versatile use in architecture, Landschaftsbau, und industrielle Anwendungen.

Kategorie: Cortenstahl

Beschreibung

Corten flat sheets are weathering steel plates designed to develop a schützende Rostschicht (Patina) wenn es Außenbedingungen ausgesetzt ist. Im Gegensatz zu gewöhnlichem Kohlenstoffstahl, this patina verhindert weitere Korrosion, giving Corten steel both structural durability and aesthetic appeal.

Corten flat sheets are widely used in architectural cladding, Stadtmöbel, Landschaftsbau, und industrielle Anwendungen.

Fabrication Processes for Corten Flat Sheets

Corten flat sheets can be processed using standard metal fabrication techniques, with some adjustments to account for their unique weathering properties.

1. Schneiden

Laserschneiden: Hohe Präzision, ideal for decorative panels or complex patterns
Plasmaschneiden: Suitable for thicker sheets, fast and efficient
Waterjet Cutting: Keine Wärmeeinflusszone, preserving material properties

2. Biegen und Formen

CNC Press Bending: Accurate angles for architectural or structural elements
Rollformen: For curved or cylindrical shapes
Drücken Sie Umformen: For custom profiles and shapes

3. Schweißen

Compatible with MICH, WIG, and arc welding
Requires suitable filler metals for weathering steel
Post-weld surface treatment may be applied to maintain uniform patina

4. Oberflächenbehandlung

Natural Rusting: Exposure to alternating wet-dry cycles in outdoor environments
Beschleunigtes Vorrosten: Chemical treatment to speed up patina formation
Sandblasting or Pickling: Surface preparation to ensure uniform rust development

Leistungsvergleich: Corten vs Ordinary Carbon Steel

Eigentum / Besonderheit	Cortenstahl (Verwitterung)	Gewöhnlicher Kohlenstoffstahl
Legierungskomposition	Cu, Cr, In, P added	Mainly Fe + C
Korrosionsbeständigkeit	Hoch (forms protective patina)	Niedrig (rust accelerates)
Oberflächenbeständigkeit	Patina layer protects steel	Rust flakes, weakens surface
Wartungsbedarf	Minimal	Requires painting or coating
Lebensdauer (Outdoor)	25–50+ Jahre	5–15 years
Aesthetic Appearance	Reddish-brown rust evolving	Orange, uneven rust
Schweißen & Herstellung	Einfach, standard methods	Einfach, but rust protection needed

Hauptunterschiede:

Legierungselemente: Corten steel contains copper, Chrom, Nickel, and phosphorus to stabilize the rust layer. Ordinary carbon steel lacks these elements.
Korrosionsverhalten: Corten forms a dense, adherent patina; carbon steel rust is porous and destructive.
Wartung: Corten steel requires minimal maintenance, while carbon steel often needs coatings or repainting.
Outdoor Lifespan: Corten flat sheets have a significantly longer life in outdoor applications due to self-protective patina.