نوع الصلب بالألمنيوم 2
نوع الصلب بالألمنيوم 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.
- وصف
وصف
نوع الصلب بالألمنيوم 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.
تكوين الطلاء
The coating of Aluminized Steel Type 2 mainly consists of aluminum with minimal alloying elements.
| عنصر | المحتوى النموذجي (%) |
|---|---|
| الألومنيوم (آل) | ≥99 |
| السيليكون (و) | يتعقب |
| حديد (الحديد) | 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.
الخواص الميكانيكية
Mechanical properties are determined primarily by the base steel rather than the aluminum coating.
| ملكية | القيمة النموذجية |
| قوة الشد | 270–450 MPa |
| قوة العائد | 140–300 MPa |
| استطالة | 20–40% |
| صلابة | 55–85 HRB |
The material maintains good formability and can be processed through bending, roll forming, ختم, واللحام.
خصائص الأداء الرئيسية
المقاومة المتميزة للتآكل
The pure aluminum coating provides excellent protection against moisture, أكسدة, and industrial atmospheres. This makes the material suitable for outdoor applications and environments exposed to humidity.
عمر خدمة طويل
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.
التطبيقات النموذجية
نوع الصلب بالألمنيوم 2 is commonly used in:
- Roofing and wall panels
- Grain silos and storage tanks
- Agricultural buildings
- معدات التدفئة والتهوية وتكييف الهواء
- أنظمة التهوية الصناعية
- خزائن كهربائية
- Outdoor enclosures
- Construction components
- Solar equipment supports
- Corrosion-resistant structural parts
يكتب 1 vs. يكتب 2 مقارنة
| ملكية | يكتب 1 | يكتب 2 |
| طلاء | Aluminum-Silicon Alloy | الألومنيوم النقي |
| مقاومة الحرارة | ممتاز | جيد |
| مقاومة التآكل | Very Good | ممتاز |
| مقاومة الأكسدة | ممتاز | Very Good |
| Exhaust System Use | شائع | نادر |
| Building Applications | محدود | شائع |
