- Keterangan
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:
- Fasad arsitektur
- Landscape design
- Bridges and structural engineering
- Patung luar ruangan
- Garden screens and wall panels
- Struktur industri
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.
Common Grades of Corten Steel Sheets
1. Corten A
Karakteristik
- One of the most common weathering steel grades
- Ketahanan korosi atmosfer yang sangat baik
- Good decorative rust appearance
- Lower phosphorus structural limitation than structural grades
Aplikasi
- Panel dinding arsitektur
- Layar dekoratif
- Struktur lanskap
- Tepi taman
- Exterior cladding systems
Corten A is mainly used for architectural and decorative applications.
2. Corten B
Karakteristik
- Higher structural strength than Corten A
- Better heavy-load performance
- Kemampuan las yang baik
- Strong outdoor durability
Aplikasi
- Jembatan
- Structural steel frameworks
- Gerobak kereta api
- Bangunan industri
- Heavy outdoor structures
Corten B is more suitable for structural engineering projects.
3. ASTM A588 Weathering Steel
Karakteristik
- High-strength low-alloy weathering steel
- Ketahanan korosi atmosfer yang sangat baik
- Designed for structural applications
Aplikasi
- 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
Karakteristik
- Weathering sheet steel with good formability
- Suitable for thin sheet processing
- Excellent decorative appearance
Aplikasi
- Roofing panels
- Pelapis dinding
- Fasad arsitektur
- Decorative steel panels
A606 is commonly used for architectural sheet metal applications.
5. S355J2W Weathering Steel
Karakteristik
- Baja tahan cuaca standar Eropa
- Good mechanical strength
- Ketahanan korosi atmosfer yang sangat baik
Aplikasi
- European structural projects
- Outdoor steel structures
- Architectural engineering
This grade is common in European construction standards.
6. SPA-H Weathering Steel
Karakteristik
- Japanese standard weathering steel
- Ketahanan korosi yang baik
- Stable rust layer formation
Aplikasi
- Sistem kereta api
- Kontainer
- Architectural projects
- Outdoor engineering structures
SPA-H is widely used in Asian markets.
Comparison of Common Corten Steel Grades
| Nilai | Fitur Utama | Penggunaan Umum |
|---|---|---|
| Corten A | Decorative weathering steel | Facades and screens |
| Corten B | Baja pelapukan struktural | Jembatan dan bangunan berat |
| ASTM A588 | Baja struktural berkekuatan tinggi | Engineering projects |
| ASTM A606 | Formable sheet steel | Roofing and wall panels |
| S355J2W | European structural grade | Outdoor construction |
| SPA-H | Baja tahan cuaca Jepang | Railway and architecture |
Common Thickness Range of Corten Steel Sheets
| Ketebalan | Aplikasi Khas |
|---|---|
| 1 – 3 mm | Panel dan layar dekoratif |
| 3 – 6 mm | Wall cladding and facades |
| 6 – 20 mm | Rekayasa struktur |
| 20 mm+ | Heavy industrial structures |
Why Corten Steel Grades Matter
Different grades affect:
- Corrosion resistance performance
- Kekuatan struktural
- Kemampuan las
- Processing capability
- Daya tahan luar ruangan
Choosing the correct grade depends on:
- Decorative or structural use
- Environmental exposure conditions
- Engineering load requirements
