镀铝锌钢板是铝锌合金结构组成钢板，含55%铝由、43.4%锌与1.6%硅在600℃高温下凝固而组成，其整个结构由铝－铁－硅－锌，形成致密的四元结晶体的一种合金。钢板具有非常好的耐腐蚀性，目前被广泛应用于养殖畜牧业、汽车及电器行业。具体分布如下：

Aluminized zinc is a steel plate composed of aluminum-zinc alloy structure, containing 55% aluminum, 43.4% zinc and 1.6% silicon solidified at a high temperature of 600℃, its whole structure is composed of aluminum-iron-silicon-zinc, forming a dense quaternary crystal alloy.Steel plate has a very good corrosion resistance, and is widely used in breeding animal husbandry, automobile and electrical appliances industry.The specific distribution is as follows:

1、建筑：屋顶、墙壁、车库、隔音墙、管道和组合式房屋等；

1. Buildings: roof, walls, garage, acoustic walls, pipes and combined houses, etc.;

2、汽车：消声器、排气管、雨刷附件、燃料箱、货车箱等；

2. Automobile: muffler, exhaust pipe, wiper accessories, fuel tank, truck box,etc.;

3、家电：冰箱背板、煤气炉、空调机、微波炉、LCD边框、背光源、电气柜等；

3. Home appliances: refrigerator backplane, gas furnace, air conditioner, microwave oven, LCD frame, backlight, electrical cabinet, etc.;

4、农用：猪舍、鸡舍、粮仓、温室用管道等。

4. Agricultural use: piggery, chicken house, granary, greenhouse pipeline, etc.

随着新能源汽车领域不断发展，国内崛起一批造车新力军企业，如蔚来汽车、小鹏汽车、理想汽车、这些品牌的新能源汽车续航里程已达到500km，足以满足市民日常出行需求。随着新能源汽车的普及和发展，城市快速充电桩不断加快建设步伐，绝大部分充电桩都建在户外，充电桩日晒雨淋对钢板的耐腐蚀性其要求之高，是普通镀锌板、电解板、冷板都无法满足的。上海宝钢镀铝锌是充电桩箱体的首选材料，宝钢镀铝锌具有耐腐蚀性、耐热性、经济性特点：

With the continuous development of the field of new energy vehicles, a number of new military enterprises rise in China, such as Nio, Xiaopeng Automobile, Ideal Automobile, these brands of new energy vehicle range has reached 500km, enough to meet the daily travel needs of citizens.With the popularization and development of new energy vehicles, the urban rapid charging piles continue to accelerate the pace of construction, most of the charging piles are built outdoors, charging piles on the corrosion resistance of steel plate, is ordinary galvanized plate, electrolytic plate and cold plate can not meet.Shanghai Baosteel is the preferred material for charging pile box, which has corrosion resistance, heat resistance and economic characteristics:

❀耐腐蚀性

❀ corrosion resistance

镀铝锌钢卷”的耐腐蚀性主要是因为铝的保护功能。当锌受到磨损时，铝便形成一层致密的氧化铝，阻止耐腐蚀性物质进一步的腐蚀内部，是纯镀锌板的3倍。

The corrosion resistance of aluminum-coated zinc steel coil " is mainly due to the protective function of aluminum.When zinc is worn out, aluminum forms a dense layer of alumina that prevents further corrosion of corrosion-resistant materials, three times that of pure galvanized plates.

❀耐热性

❀ heat resistance

铝锌合金钢板具有良好的耐热性，可以承受300多摄氏度的高温，与镀铝钢板的抗高温氧化性很类似，经常应用于烟囱管，烤箱、照明器和日光灯罩。镀铝锌钢板的热反射率很高，是镀锌钢板的两倍 ，人们经常用它来作隔热的材料，适合长期户外爆晒的产品。

Aluminum zinc alloy steel plate has good heat resistance, can withstand high temperature of more than 300 degrees Celsius, similar to the high temperature oxidation resistance of aluminous steel plate, and is often used in chimney pipes, ovens, illuminators and fluorescent lampshade.The thermal reflectivity of aluminum galvanized steel plate is very high, which is twice that of galvanized steel plate, people often use it as a heat insulation material, suitable for long-term outdoor drying products.

❀经济性

❀ economical efficiency

因为55%AL-Zn的密度比Zn的密度小，所以在重量相同和镀金层厚度相同的情况下，镀铝锌钢板比镀锌钢板的面积大3%以上。

Because the density of 55%AL-Zn is smaller than that of Zn, the aluminum-plated galvanized sheet is more than 3% larger with the same weight and the same galvanized sheet thickness.

镀铝锌牌号有普强和高强之分，普通强度镀铝锌板卷屈服强度在300MP左右，适合钣金加工和建筑瓦面使用，普强牌号有DX51D+AZ100/TS280GD+AZ120/TS300GD+AZ150，+前面表示牌号，+后面表示锌层含量。高强镀铝锌板有TS350GD+AZ100/TS380GD+AZ120/G550+AZ150,这类钢板屈服强度在350~550MP，在建筑行业被广泛应用，如瓦楞板、墙板、轻钢别墅等。

Aluminized zinc brand number is general strength and high strength, ordinary strength aluminum galvanized sheet yield strength is about 300MP, suitable for sheet metal processing and building tile surface use, Puqiang brand number has DX51D + AZ100 / TS280GD + AZ120 / TS300GD + AZ150, + front sign, + back indicates zinc layer content.High strength aluminum plated galvanized plate has TS350GD + AZ100 / TS380GD + AZ120 / G550 + AZ150, this kind of steel plate yield strength in 350~550MP, is widely used in the construction industry, such as corrugated board, wall board, light steel villa, etc.