アルミメッキ鋼タイプ 2
アルミメッキ鋼タイプ 2 is designed primarily for corrosion protection rather than extreme heat resistance. Its nearly pure aluminum coating offers excellent weatherability, long service life, and strong resistance to atmospheric corrosion. These characteristics make it an ideal choice for construction, agricultural, and industrial applications requiring durable and low-maintenance steel products.
- 説明
説明
アルミメッキ鋼タイプ 2 is a carbon steel product coated with commercially pure aluminum through a hot-dip process. Unlike Type 1, which contains an aluminum-silicon alloy coating, this grade uses nearly pure aluminum to provide superior atmospheric corrosion resistance. It is widely used in construction, storage equipment, agricultural facilities, and outdoor structures where long-term durability is required.
コーティング組成物
The coating of Aluminized Steel Type 2 mainly consists of aluminum with minimal alloying elements.
| 要素 | 代表的な内容 (%) |
|---|---|
| アルミニウム (アル) | ≥99 |
| シリコン (そして) | トレース |
| 鉄 (鉄) | Small amount from diffusion layer |
The high-purity aluminum coating forms a dense oxide film on the surface, protecting the steel substrate from corrosion and weather exposure.
機械的特性
Mechanical properties are determined primarily by the base steel rather than the aluminum coating.
| 財産 | 代表値 |
| 抗張力 | 270–450 MPa |
| 降伏強さ | 140–300 MPa |
| 伸長 | 20–40% |
| 硬度 | 55–85 HRB |
The material maintains good formability and can be processed through bending, roll forming, スタンピング, そして溶接.
主なパフォーマンス特性
優れた耐食性
The pure aluminum coating provides excellent protection against moisture, 酸化, and industrial atmospheres. This makes the material suitable for outdoor applications and environments exposed to humidity.
長寿命
A stable aluminum oxide layer continuously protects the surface from further corrosion, helping extend the lifespan of structures and fabricated components.
Good Weather Resistance
The coating performs well under long-term exposure to rain, sunlight, and temperature fluctuations. It maintains surface integrity better than ordinary carbon steel.
Excellent Heat Reflectivity
The bright aluminum surface reflects radiant heat efficiently, helping reduce heat absorption in buildings and industrial equipment.
代表的な用途
アルミメッキ鋼タイプ 2 is commonly used in:
- Roofing and wall panels
- Grain silos and storage tanks
- Agricultural buildings
- 空調設備
- 産業用換気システム
- 電気キャビネット
- Outdoor enclosures
- Construction components
- Solar equipment supports
- Corrosion-resistant structural parts
タイプ 1 vs. タイプ 2 比較
| 財産 | タイプ 1 | タイプ 2 |
| コーティング | Aluminum-Silicon Alloy | 純粋なアルミニウム |
| 耐熱性 | 素晴らしい | 良い |
| 耐食性 | Very Good | 素晴らしい |
| 耐酸化性 | 素晴らしい | Very Good |
| Exhaust System Use | 一般 | レア |
| Building Applications | 限定 | 一般 |












