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Aluminum Alloy Datasheets

收錄工業常用鋁合金系列的完整技術規格，涵蓋各熱處理狀態（O、T、H 系列）的化學成分與力學、物理性質。Comprehensive technical specifications for commonly-used industrial aluminum alloy series, covering chemical composition and mechanical/physical properties across all temper states (O, T, H). 選擇系列後即可在網頁上直接檢視各材料的 ASTM／ISO 規格表，適用於選料、設計驗算與品質確認。Pick a series to view the ASTM/ISO datasheet for each grade directly in your browser — suitable for material selection, design calculation, and quality confirmation.

2000
Al-Cu Alloy

2000 Series

主合金元素：銅（Cu）Main element: Copper (Cu)

高強度鋁銅合金，抗拉強度接近低碳鋼。具備優異的切削性與疲勞強度，廣泛應用於航太結構件與軍事工業，常見牌號 2014、2024、2219。

High-strength Al-Cu alloy with tensile strength approaching mild steel. Excellent machinability and fatigue strength; widely used in aerospace structures and military industries. Common grades: 2014, 2024, 2219.

2014 2017 2024 2124 2219
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5000
Al-Mg Alloy

5000 Series

主合金元素：鎂（Mg）Main element: Magnesium (Mg)

優異的抗海水腐蝕性與焊接性能，焊接後強度損失極小。是船舶、海洋工程與壓力容器製造的首選材料，常見牌號 5052、5083、5086。

Outstanding seawater corrosion resistance and weldability with minimal strength loss after welding. The material of choice for marine, ocean engineering, and pressure-vessel manufacturing. Common grades: 5052, 5083, 5086.

5052 5083 5086
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6000
Al-Mg-Si Alloy

6000 Series

主合金元素：鎂（Mg）+ 矽（Si）Main element: Magnesium (Mg) + Silicon (Si)

工業界最泛用的高強度結構鋁，極佳的擠型特性可製造複雜截面。兼具良好耐蝕性與可焊性，廣泛用於建築結構、汽車車體與自行車車架。

The most widely-used high-strength structural aluminum in industry. Excellent extrudability allows complex cross-sections; good corrosion resistance and weldability. Widely used in architectural structures, vehicle bodies, and bicycle frames.

6013 6061 6063 6069 6082
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7000
Al-Zn Alloy

7000 Series

主合金元素：鋅（Zn）Main element: Zinc (Zn)

鋁合金中強度最高的系列，提供極限輕量化與峰值強度的組合。廣泛應用於高階自行車零件（車架、把手）、航空機身蒙皮與高性能運動器材。

The highest-strength aluminum series, offering ultimate light-weight and peak-strength combination. Widely used in high-end bicycle parts (frames, handlebars), aircraft fuselage skin, and high-performance sports equipment.

7050 7075
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Total DatasheetsTotal Datasheets
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Alloy SeriesAlloy Series
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Alloy GradesAlloy Grades
WEB
線上規格表Online Datasheets
Reference · Alloy Numbering

鋁合金八大系列編號Aluminum Alloy Series Numbering

變形鋁合金（Wrought Aluminum）依主要合金元素，採國際四位數字牌號（AA 命名系統）區分為八大系列。Wrought aluminum is classified by its main alloying element into eight major series, using the international four-digit AA designation system. 牌號的第一位數字即代表合金分類，是選料、設計驗算與規格判讀的基礎。The first digit of the designation indicates the alloy category — the foundation for material selection, design calculation, and specification interpretation.

系列Series 主合金元素Main Alloying Element 材料特性Material Characteristics 代表牌號與應用Representative Grades & Applications
1XXX1000 系1000s
純鋁基材Pure AluminumAl ≥ 99.0%
耐蝕性在各系中最佳，導電與導熱性優異，成形性與表面處理性良好；強度偏低，且純度越高、強度越低。Best corrosion resistance among all series; excellent electrical and thermal conductivity; good formability and surface treatment; relatively low strength — the higher the purity, the lower the strength.
105010701100
裝飾／內飾件、導電導熱材、鋁箔Decorative/interior parts, conductive/thermal materials, foil
2XXX2000 系2000s
銅 CuCopper (Cu)Al-Cu · 3–5%
強度與硬度高，切削性與疲勞強度佳，強度接近低碳鋼；耐蝕性較弱，屬熱處理可強化合金。High strength and hardness, good machinability and fatigue strength approaching mild steel; weak corrosion resistance; heat-treatable.
201420242219
航太結構件、軍工構造用材Aerospace structural parts, military construction materials
3XXX3000 系3000s
錳 MnManganese (Mn)Al-Mn · 1.0–1.5%
防鏽性能優良，成形性、焊接性與耐蝕性均衡，強度中等，是泛用型防鏽鋁材。Excellent rust resistance; balanced formability, weldability, and corrosion resistance; moderate strength — a general-purpose rust-resistant aluminum.
300331053A21
槽罐、建築加工件、燈具零件、壓力容器與管路Tanks, architectural parts, lamp components, pressure vessels and piping
4XXX4000 系4000s
矽 SiSilicon (Si)Al-Si · 4.5–6.0%
含矽量高使熔點降低、湯流流動性佳、凝固收縮小，並具耐熱與耐磨特性。High silicon lowers melting point, gives good casting fluidity and low solidification shrinkage; heat- and wear-resistant.
40324A01
焊接材料、鍛造件、建築用材、機械零件Welding materials, forgings, architectural materials, mechanical parts
5XXX5000 系5000s
鎂 MgMagnesium (Mg)Al-Mg · 3–5%
密度低、抗拉強度與延伸率高、疲勞強度佳，抗海水腐蝕與焊接性能突出。Low density, high tensile strength and elongation, good fatigue strength; outstanding seawater corrosion resistance and weldability.
505250835086
船舶、海洋工程、壓力容器Marine, ocean engineering, pressure vessels
6XXX6000 系6000s
鎂 + 矽Mg + SiAl-Mg-Si
兼具 4 系與 5 系優點，擠型性極佳可成形複雜斷面，耐蝕、可焊、易加工與塗裝，屬熱處理可強化合金。Combines advantages of 4xxx and 5xxx series; excellent extrudability for complex cross-sections; corrosion-resistant, weldable, machinable, and paintable; heat-treatable.
6061606360696082
建築門窗型材、汽車車體、自行車車架Architectural window frames, automotive bodies, bicycle frames
7XXX7000 系7000s
鋅 ZnZinc (Zn)Al-Zn-Mg-Cu
鋁合金中強度最高的系列，屬超硬鋁，可熱處理強化並具良好耐磨性。The highest-strength aluminum series — "super-duralumin" — heat-treatable with good wear resistance.
70507075
高階自行車零件、航空機身、運動器材High-end bicycle parts, aircraft fuselage, sports equipment
8XXX8000 系8000s
其他元素Other ElementsLi · Fe 等
涵蓋前述以外的合金體系，特性依主元素組合而定，以鋁箔等薄材應用為主。Covers alloy systems not in the above; properties depend on the main element combination; mainly used as foils and thin sheets.
8011
鋁箔、薄板等專用材Foils, thin sheets, specialty materials
編號規則Numbering Rules 1XXX 系列的後兩位數字代表最低含鋁量的小數位 —— 例如 1050 即表示含鋁量 ≥ 99.50%。鋁合金另依加工方式分為「變形鋁合金」與「鑄造鋁合金」，本表為前者的國際牌號系統。The last two digits in the 1XXX series indicate the minimum aluminum content (as decimals) — e.g., 1050 means Al ≥ 99.50%. Aluminum alloys are further classified by processing method into wrought and cast alloys; this table covers the wrought-alloy international designation system.
強化方式Strengthening Method 2XXX、6XXX、7XXX 屬熱處理可強化合金；1XXX、3XXX、5XXX 則為非熱處理型，主要藉加工硬化（H 處理）提升強度。2XXX, 6XXX, and 7XXX are heat-treatable; 1XXX, 3XXX, and 5XXX are non-heat-treatable and rely on work hardening (H tempers) for strength.

五個Five關鍵重點Key Points

  1. 變形鋁合金以四位數字牌號分類，第一位數字即代表主合金元素系列。Wrought aluminum alloys are classified by 4-digit designation; the first digit identifies the main alloying element series.
  2. 系列對照 —— 1 純鋁、2 銅、3 錳、4 矽、5 鎂、6 鎂矽、7 鋅、8 其他。Series mapping: 1 pure Al, 2 Cu, 3 Mn, 4 Si, 5 Mg, 6 Mg-Si, 7 Zn, 8 others.
  3. 1XXX 系列後兩位數字代表最低含鋁量小數位，如 1050 即含鋁量 99.50%。The last two digits of the 1XXX series indicate the minimum aluminum content as decimals — e.g., 1050 = 99.50% Al.
  4. 2XXX 與 7XXX 為高強度航太合金，其中 7XXX（如 7075）強度居各系之冠。2XXX and 7XXX are high-strength aerospace alloys — 7XXX (e.g., 7075) has the highest strength of all series.
  5. 6XXX 擠型性最佳、最泛用於結構件（含自行車車架）；5XXX 抗海水腐蝕性最突出。6XXX has the best extrudability and is most widely used for structural parts (including bicycle frames); 5XXX has the most outstanding seawater corrosion resistance.