4系列铝硅合金代表为4A01，4047特点：①以硅为主要合金元素的铝合金，大多不可热处理强化。通常硅含量在4.5-6.0%之间。②熔点低，熔体流动性好，容易补缩，耐蚀性好③有良好的耐磨性和耐热性。用途：焊接材料；活塞；耐热件5系列铝镁合金代表5052、5005、5083、5A05系列特点：①以Mg为主要合金元素的铝合金。含镁量在3-5%之间。又可以称为铝镁合金。②不可热处理强化③密度小（5052密度为2.68）。在相同面积下铝镁合金的重量低于其他系列.强度比1、3系高，属中高强度的铝合金，疲劳性和焊接性能好。抗拉强度高，延伸率高。④耐海洋大气腐蚀性较好。

　　The representative of the 4-series aluminum silicon alloy is 4A014047. Characteristics: ① Aluminum alloys with silicon as the main alloying element are mostly not heat treated for strengthening. The silicon content is usually between 4.5-6.0% Low melting point, good melt flowability, easy shrinkage, good corrosion resistance, and excellent wear resistance and heat resistance. Usage: Welding material; Piston; The heat-resistant 5 series aluminum magnesium alloy represents the characteristics of 5052, 5005, 5083, and 5A05 series: ① Aluminum alloy with Mg as the main alloying element. The magnesium content is between 3-5%. Also known as aluminum magnesium alloy Cannot be strengthened by heat treatment ③ Low density (5052 density is 2.68). Under the same area, the weight of aluminum magnesium alloy is lower than other series. Its strength is higher than that of series 1 and 3, and it belongs to the category of medium to high strength aluminum alloy with good fatigue and welding performance. High tensile strength and high elongation Has good resistance to marine atmospheric corrosion.

　　5：属于热轧铝板系列故能做氧化深加工。主要用途：各种汽车零部件、板金件；机械部件，汽车、飞机油箱，军舰、潜艇；集装箱等。5083用于船舶、汽车、飞机的焊接件。

　　5: Belonging to the hot-rolled aluminum plate series, it can undergo deep oxidation processing. Main applications: various automotive components and sheet metal parts; Mechanical components, fuel tanks for cars and airplanes, warships and submarines; Containers, etc. 5083 is used for welding parts of ships, automobiles, and airplanes.

　　6系列铝镁硅合金代表6061，6063.6082特点：①以镁和硅为主要合金元素的铝合金②可进行热处理强化（T4、T6）③中等强度④耐蚀性高⑤焊接性能良好⑥成型性和工艺性良好。用途：要求有一定强度，可焊性与抗蚀性高的机械部件；各种管棒、型材以及装饰构件；散热片等

　　The characteristics of the 6-series aluminum magnesium silicon alloy, represented by 60616063.6082, include: ① aluminum alloy with magnesium and silicon as the main alloying elements ② heat treatment strengthening (T4, T6) ③ moderate strength ④ high corrosion resistance ⑤ good welding performance ⑥ good formability and processability. Purpose: Mechanical components that require certain strength, high weldability, and corrosion resistance; Various pipe rods, profiles, and decorative components; Cooling fins, etc

　　7系铝锌镁合金代表7075。也属于航空系列。特点：①以锌为主要合金元素的铝合金②可热处理强化。③硬度大，强度高，有良好的耐磨性，属于超硬铝合金。4：7075铝板是经消除应力的,加工后不会变形、翘曲.所有超大超厚的7075铝板全部经超声波探测,可以保证无砂眼、杂质用途：广泛用于飞机上的许多零部件（主要为外部零部件）；其他强度高，抗蚀性能强的高硬度构件；各种模具（要求精密的）

　　The 7-series aluminum zinc magnesium alloy represents 7075. It also belongs to the aviation series. Features: ① Aluminum alloy with zinc as the main alloying element ② Heat treatment strengthening. ③ High hardness, high strength, and good wear resistance, it belongs to ultra hard aluminum alloy. 4: 7075 aluminum plate is stress relieved and will not deform or warp after processing. All super large and ultra thick 7075 aluminum plates are inspected by ultrasonic waves to ensure no sand holes or impurities. It is widely used in many parts of aircraft (mainly external components); Other high hardness components with high strength and strong corrosion resistance; Various molds (requiring precision)

　　8系列铝板材代表：8011铝板材。特点：以做瓶盖为主要功用的铝板，也应用在散热器方面，大部分应用为铝箔。根据加工工艺不同又可分为冷轧和热轧。

　　Representative of 8 series aluminum sheet: 8011 aluminum sheet. Features: Aluminum plate mainly used for making bottle caps, also applied in radiators, with most applications being aluminum foil. According to different processing techniques, it can be divided into cold rolling and hot rolling.

　　9系备用合金9系列属于备用系列，科技那么发达，为了应对为了含有其他合金元素的铝板出现，国际铝板带联合会特表明9000系列为备用系列，等待着又一个新的品种出现来填补9000系列的空白。

　　The 9 series backup alloy belongs to the backup series. With advanced technology, in order to cope with the emergence of aluminum plates containing other alloy elements, the International Aluminum Plate and Strip Federation has designated the 9000 series as the backup series, waiting for another new variety to appear to fill the gap in the 9000 series.

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