目前国内较大的轻钢别墅项目建造材料选取的是国产Q345镀锌钢材料。

At present, it is a larger domestic light steel villa project construction material selection is the domestic Q345 galvanized steel material.

镀铝锌钢板性能

Performance of aluminum-coated galvanized steel plate

1、 加工性

1. Processability

满足辊压、冲压成形、弯曲和其它形式的加工要求。

Meet the roller pressure, stamping, forming, bending and other forms of processing requirements.

2、 耐蚀性

2. Corrosion resistance

（与热镀锌对比）：热镀铝锌钢板有优异的耐腐蚀性，使用寿命是同等镀层厚度的普通镀锌钢板的2-6倍。

(Compared with hot dip galvanized): Hot dip aluminum plated zinc steel plate has excellent corrosion resistance, and its service life is 2-6 times that of ordinary galvanized steel plate with the same plating thickness.

3、 反射性

3. Reflexivity

反射热和光的能力是热镀锌钢板的2倍，反射率大于0.70，优于EPA Energy Star（美国环保署 能源之星）规定的0.65，是理想的节能建筑材料。

The ability to reflect heat and light is twice as high as that of hot-dip galvanized steel, the reflectivity is greater than 0.70, better than the 0.65 stipulated by EPA Energy Star (EPA Energy Star), and it is an ideal energy-saving building material.

4、 耐热性

4. Heat resistance

普通热镀锌产品通常使用温度不超过230℃，250℃时会变色，而镀铝锌板可在315℃环境下长期使用不变色。 耐热钝化处理的镀铝锌钢板，在300℃环境下120小时，其颜色变化较铝板和镀铝板的变化均小。

Ordinary hot galvanized products usually use a temperature not more than 230℃, 250℃ will change color, and aluminum galvanized plate can be used in 315℃ environment for long-term without discoloration.Aluminized galvanized steel plate for 120 hours at 300℃.

为什么镀铝锌钢板不生锈？

Why does aluminized zinc steel plate not rust?

在美国宾夕法尼亚州工业地区进行的镀面钢板比较试验：镀铝锌钢板经过30年后约无锈蚀迹，低层冷弯薄壁型钢建筑是把主体钢结构全部密封在墙体内，所以结构主体可以使用超过多年以上。

The comparative test of coated steel plate in the industrial area of Pennsylvania: aluminum galvanized steel plate after 30 years, low-layer cold-bent thin-wall steel building is all the main steel structure sealed in the wall, so the main body of the structure can be used for more than more years.

镀铝锌钢板（GALVALUME/GL）是目前具有最佳抗腐蚀性能的金属镀层配比的钢板。镀铝锌钢板的铝锌合金结构是由55%铝、43.4%锌与1.6%硅在600℃高温下固化而组成，其整个结构由铝－铁－硅－锌，形成致密的四元结晶体，从而形成一层强有效防止腐蚀因子透穿的屏障。

Aluminium galvanized steel plate (GALVALUME / GL) is a steel plate with metal coating ratio with the best corrosion resistance.The aluminum-zinc alloy structure of aluminum-zinc steel plate is composed of 55% aluminum, 43.4% zinc and 1.6% silicon curing at a high temperature of 600℃. The whole structure consists of aluminum-iron-silicon-zinc, forming a dense quaternary crystal, thus forming a strong barrier against the penetration of corrosion factors.