Lembar Corten
Corten sheets are available in a wide range of ketebalan, lebar, dan panjang, making them suitable for diverse applications from decorative cladding to heavy structural use. Nilai umum seperti Corten A, Corten B, S355J2W, and Q345NH provide different balances of corrosion resistance and mechanical strength.
- Keterangan
Corten sheet refers to weathering steel sheets and plates dirancang untuk ketahanan korosi atmosferik. These products are widely used in construction, lansekap, and industrial fabrication due to their ability to form a stable protective rust layer.
Corten sheets are typically supplied in flat sheet or plate form, with various thicknesses, lebar, and lengths depending on application requirements.
1. Standard Thickness of Corten Sheets
Corten steel is available in a wide thickness range to meet different fabrication and structural needs:
| Kategori | Kisaran Ketebalan | Jenis Produk |
|---|---|---|
| Lembaran tipis | 0.5 – 3.0 mm | Cold rolled sheet |
| Medium sheet/plate | 3.0 – 20 mm | Hot rolled plate |
| Thick plate | 20 – 100 mm | Piring berat |
- Thin sheets are mainly used for decorative panels and cladding
- Ketebalan sedang (such as 3–10 mm) is the most commonly used range
- Thick plates are used in heavy structural applications
2. Lebar dan Panjang Standar
Corten sheets are typically produced in standard sizes but can also be customized.
Lebar Umum
- 1000 mm
- 1219 mm (4 kaki)
- 1250 mm
- 1500 mm
- 2000 mm
Panjang Umum
- 2000 mm
- 2400 mm
- 3000 mm
- 6000 mm
Typical Sheet Size Combinations
| Ketebalan | Lebar | Panjang |
|---|---|---|
| 1.5 – 3 mm | 1000 / 1219 / 1250 mm | 2000 / 2400 mm |
| 3 – 10 mm | 1250 / 1500 mm | 2500 / 3000 mm |
| 10 – 20 mm | 1500 / 2000 mm | 3000 / 6000 mm |
Custom cutting and sizing are commonly available to meet project-specific requirements.
3. Common Grades of Corten Steel Sheets
Corten steel includes several international grades depending on standards and applications:
Nilai Standar ASTM
- Corten A (ASTM A242 Type 1)
- Corten B (ASTM A588)
EN Standard Grades
- S355J0WP
- S355J2W
- S355J2WP
GB Standard Grades (Cina)
- Q235NH
- Q345NH
- Q295GNH
4. Differences Between Main Grades
| Nilai | Standar | Fitur utama | Aplikasi |
|---|---|---|---|
| Corten A | ASTM A242 | Better atmospheric corrosion resistance | Penggunaan arsitektur |
| Corten B | ASTM A588 | Kekuatan yang lebih tinggi | Penggunaan struktural |
| S355J2W | DI DALAM 10025-5 | Balanced strength and toughness | Konstruksi |
| Q345NH | GB | Good weldability and strength | General engineering |
5. Supply Conditions and Forms
Corten sheets are usually supplied in the following conditions:
- Digulung panas (most common for ≥3 mm)
- Cold rolled (for thin sheets ≤3 mm)
- Pickled or shot blasted surface
- Pre-weathered (optional for uniform rust appearance)
6. Applications of Corten Sheets
Architectural Use
- Panel pelapis fasad
- Decorative wall systems
- Roofing and exterior elements
Lansekap
- Garden edging and planters
- Dinding penahan
- Patung luar ruangan
Rekayasa Struktural
- Bridges and steel frameworks
- Kontainer dan peralatan industri
