コールテンスチールメタル
Corten steel metal is a durable, low-alloy material that develops a protective red-brown rust layer 時間とともに. Common grades like コルテンA, コルテンB, and S355W offer varying levels of corrosion resistance, 強さ, 溶接性.
- 説明
コルテンステム, としても知られています 耐候性鋼, です 高強度, low-alloy steel that develops a protective rust-like patina when exposed to the elements. This naturally forming surface layer slows further corrosion and eliminates the need for painting or coatings, making corten steel an ideal material for outdoor, 建築的, and structural applications.
Common Grades of Corten Steel
Corten steel is manufactured in several standard grades, each with specific chemical compositions and mechanical properties suited for different applications.
| 学年 | 標準 | 主な特長 |
|---|---|---|
| コルテンA | ASTM A588 | High-strength low-alloy steel for general atmospheric exposure; used for panels, 被覆材, および構造コンポーネント |
| コルテンB | ASTM A242 | Slightly higher corrosion resistance than Corten A; commonly used in bridges and industrial structures |
| S355J0WP | で 10025-5 (ヨーロッパ) | European weathering steel grade; good weldability and structural performance |
| S355W | で 10025-5 (ヨーロッパ) | Enhanced atmospheric corrosion resistance for exposed outdoor structures |
Chemical Composition of Corten Steel
The corrosion resistance and mechanical performance of corten steel come from its alloying elements, which promote the formation of a 安定した, 保護錆層.
| 要素 | 代表的な内容 (%) | 関数 |
|---|---|---|
| 炭素 (C) | 0.12 – 0.25 | Provides strength while maintaining ductility |
| マンガン (ん) | 0.50 – 1.00 | Increases tensile strength and toughness |
| リン (P) | 0.04 – 0.07 | Accelerates formation of the protective rust layer |
| 硫黄 (S) | ≤0.05 | Controlled for weldability |
| シリコン (そして) | 0.30 – 0.75 | 耐酸化性の向上 |
| クロム (Cr) | 0.50 – 1.25 | Stabilizes the oxide patina and corrosion resistance |
| 銅 (銅) | 0.25 – 0.55 | Enhances weathering performance and rust color |
| ニッケル (で) | ≤0.65 | Improves corrosion resistance in atmospheric conditions |
| チタン (の) | ≤0.20 | Stabilizes structure and improves weldability |
| 鉄 (fe) | バランス | 卑金属 |
These elements work together to form a 密集, 付着した錆層 that protects the steel while giving it its characteristic reddish-brown color.
Mechanical Properties of Corten Steel
| 財産 | 代表値 |
|---|---|
| 抗張力 | 485 – 620 MPa |
| 降伏強さ | ≥355 MPa |
| 伸長 | ≥20% |
| 硬度 | 150 – 180 HB |
| 密度 | 7.85 g/cm³ |
Corten steel is strong, 厳しい, そして easily weldable, making it suitable for both decorative and structural uses.
Common Applications of Corten Steel
Architectural and Decorative Applications
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Exterior building facades and wall cladding
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Urban landscaping elements such as screens, フェンス, and planters
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Sculptures and public art installations
Structural and Industrial Applications
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Bridges and pedestrian walkways
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Outdoor shelters and canopies
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Industrial equipment and structural panels exposed to weather
Garden and Outdoor Products
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Planters and garden boxes
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Fencing, gates, とパーティション
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Outdoor furniture and benches
The natural rust patina provides low maintenance and long-term durability, while also creating a distinctive aesthetic suitable for modern architecture and landscape design.
