4系列鋁硅合金代表為4A01，4047特點：①以硅為主要合金元素的鋁合金，大多不可熱處理強化。通常硅含量在4.5-6.0%之間。②熔點低，熔體流動性好，容易補縮，耐蝕性好③有良好的耐磨性和耐熱性。用途：焊接材料；活塞；耐熱件5系列鋁鎂合金代表5052、5005、5083、5A05系列特點：①以Mg為主要合金元素的鋁合金。含鎂量在3-5%之間。又可以稱為鋁鎂合金。②不可熱處理強化③密度小（5052密度為2.68）。在相同面積下鋁鎂合金的重量低于其他系列.強度比1、3系高，屬中高強度的鋁合金，疲勞性和焊接性能好。抗拉強度高，延伸率高。④耐海洋大氣腐蝕性較好。

　　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：屬于熱軋鋁板系列故能做氧化深加工。主要用途：各種汽車零部件、板金件；機械部件，汽車、飛機油箱，軍艦、潛艇；集裝箱等。5083用于船舶、汽車、飛機的焊接件。

　　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系列鋁鎂硅合金代表6061，6063.6082特點：①以鎂和硅為主要合金元素的鋁合金②可進行熱處理強化（T4、T6）③中等強度④耐蝕性高⑤焊接性能良好⑥成型性和工藝性良好。用途：要求有一定強度，可焊性與抗蝕性高的機械部件；各種管棒、型材以及裝飾構件；散熱片等

　　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系鋁鋅鎂合金代表7075。也屬于航空系列。特點：①以鋅為主要合金元素的鋁合金②可熱處理強化。③硬度大，強度高，有良好的耐磨性，屬于超硬鋁合金。4：7075鋁板是經消除應力的,加工后不會變形、翹曲.所有超大超厚的7075鋁板全部經超聲波探測,可以保證無砂眼、雜質用途：廣泛用于飛機上的許多零部件（主要為外部零部件）；其他強度高，抗蝕性能強的高硬度構件；各種模具（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系列鋁板材代表：8011鋁板材。特點：以做瓶蓋為主要功用的鋁板，也應用在散熱器方面，大部分應用為鋁箔。根據加工工藝不同又可分為冷軋和熱軋。

　　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系備用合金9系列屬于備用系列，科技那么發達，為了應對為了含有其他合金元素的鋁板出現，國際鋁板帶聯合會特表明9000系列為備用系列，等待著又一個新的品種出現來填補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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