- Beschreibung
Corten steel sheets are weather-resistant steel plates designed to form a stable protective rust layer after exposure to the atmosphere. This oxidation layer helps reduce further corrosion and gives the steel its characteristic rusted appearance.
Corten steel is widely used in:
- Architektonische Fassaden
- Landscape design
- Brücken und Hochbau
- Skulpturen im Freien
- Garden screens and wall panels
- Industrielle Strukturen
The name “Corten” comes from:
- COR = corrosion resistance
- TEN = tensile strength
Why Different Corten Steel Grades Exist
Different weathering steel grades are developed for:
- Different strength requirements
- Structural engineering standards
- Atmospheric corrosion resistance levels
- Welding and fabrication performance
- Regional industry standards
Some grades focus more on decoration, while others are designed for heavy structural applications.
Gängige Sorten von Cortenstahlblechen
1. Corten A
Eigenschaften
- One of the most common weathering steel grades
- Ausgezeichnete atmosphärische Korrosionsbeständigkeit
- Good decorative rust appearance
- Lower phosphorus structural limitation than structural grades
Anwendungen
- Architektonische Wandpaneele
- Dekorative Bildschirme
- Landschaftsstrukturen
- Garteneinfassung
- Exterior cladding systems
Corten A is mainly used for architectural and decorative applications.
2. Corten B
Eigenschaften
- Higher structural strength than Corten A
- Better heavy-load performance
- Gute Schweißbarkeit
- Starke Haltbarkeit im Freien
Anwendungen
- Brücken
- Structural steel frameworks
- Eisenbahnwaggons
- Industriegebäude
- Heavy outdoor structures
Corten B is more suitable for structural engineering projects.
3. ASTM A588 Weathering Steel
Eigenschaften
- High-strength low-alloy weathering steel
- Ausgezeichnete atmosphärische Korrosionsbeständigkeit
- Designed for structural applications
Anwendungen
- Highway bridges
- Steel construction projects
- Large outdoor structures
- Structural support systems
ASTM A588 is widely used in North American structural engineering.
4. ASTM A606 Weathering Steel
Eigenschaften
- Weathering sheet steel with good formability
- Suitable for thin sheet processing
- Excellent decorative appearance
Anwendungen
- Roofing panels
- Wandverkleidung
- Architektonische Fassaden
- Decorative steel panels
A606 is commonly used for architectural sheet metal applications.
5. S355J2W Weathering Steel
Eigenschaften
- Witterungsbeständiger Stahl nach europäischem Standard
- Good mechanical strength
- Ausgezeichnete atmosphärische Korrosionsbeständigkeit
Anwendungen
- European structural projects
- Outdoor steel structures
- Architectural engineering
This grade is common in European construction standards.
6. SPA-H Weathering Steel
Eigenschaften
- Japanese standard weathering steel
- Gute Korrosionsbeständigkeit
- Stable rust layer formation
Anwendungen
- Eisenbahnsysteme
- Container
- Architectural projects
- Outdoor engineering structures
SPA-H is widely used in Asian markets.
Comparison of Common Corten Steel Grades
| Grad | Hauptmerkmal | Allgemeiner Gebrauch |
|---|---|---|
| Corten A | Decorative weathering steel | Facades and screens |
| Corten B | Structural weathering steel | Brücken und schwere Bauwerke |
| ASTM A588 | Hochfester Baustahl | Engineering projects |
| ASTM A606 | Formable sheet steel | Roofing and wall panels |
| S355J2W | European structural grade | Outdoor construction |
| SPA-H | Japanischer wetterfester Stahl | Railway and architecture |
Common Thickness Range of Corten Steel Sheets
| Dicke | Typische Anwendungen |
|---|---|
| 1 – 3 mm | Dekorative Paneele und Bildschirme |
| 3 – 6 mm | Wall cladding and facades |
| 6 – 20 mm | Bauingenieurwesen |
| 20 mm+ | Heavy industrial structures |
Why Corten Steel Grades Matter
Different grades affect:
- Corrosion resistance performance
- Strukturelle Stärke
- Schweißbarkeit
- Processing capability
- Haltbarkeit im Freien
Choosing the correct grade depends on:
- Decorative or structural use
- Environmental exposure conditions
- Engineering load requirements
