コルテンシート
Corten sheets are available in a wide range of thicknesses, widths, and lengths, making them suitable for diverse applications from decorative cladding to heavy structural use. Common grades such as コルテンA, コルテンB, S355J2W, and Q345NH provide different balances of corrosion resistance and mechanical strength.
- 説明
Corten sheet refers to weathering steel sheets and plates 大気耐食性を考慮した設計. These products are widely used in construction, 造園, 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, widths, 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:
| カテゴリ | 厚さの範囲 | 製品タイプ |
|---|---|---|
| Thin sheet | 0.5 – 3.0 mm | Cold rolled sheet |
| Medium sheet/plate | 3.0 – 20 mm | Hot rolled plate |
| 厚板 | 20 – 100 mm | 厚板 |
- Thin sheets are mainly used for decorative panels and cladding
- Medium thickness (such as 3–10 mm) is the most commonly used range
- Thick plates are used in heavy structural applications
2. Standard Width and Length
Corten sheets are typically produced in standard sizes but can also be customized.
Common Widths
- 1000 mm
- 1219 mm (4 フィート)
- 1250 mm
- 1500 mm
- 2000 mm
Common Lengths
- 2000 mm
- 2400 mm
- 3000 mm
- 6000 mm
Typical Sheet Size Combinations
| 厚さ | 幅 | 長さ |
|---|---|---|
| 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:
ASTM Standard Grades
- コルテンA (ASTM A242 Type 1)
- コルテンB (ASTM A588)
EN Standard Grades
- S355J0WP
- S355J2W
- S355J2WP
GB Standard Grades (中国)
- Q235NH
- Q345NH
- Q295GNH
4. Differences Between Main Grades
| 学年 | 標準 | 主な機能 | 応用 |
|---|---|---|---|
| コルテンA | ASTM A242 | Better atmospheric corrosion resistance | Architectural use |
| コルテンB | ASTM A588 | より高い強度 | Structural use |
| S355J2W | で 10025-5 | Balanced strength and toughness | 工事 |
| Q345NH | GB | Good weldability and strength | General engineering |
5. Supply Conditions and Forms
Corten sheets are usually supplied in the following conditions:
- 熱間圧延 (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
- Facade cladding panels
- Decorative wall systems
- Roofing and exterior elements
造園
- Garden edging and planters
- 擁壁
- 屋外彫刻
構造工学
- 橋梁・鉄骨造
- Containers and industrial equipment
