FAQ

Common Aluminium Alloy Characteristics and Types
The International Alloy Designation System is widely accepted as a wrought alloy. Each alloy is due to a four-digit number, where the first digit is the primary alloying element.
The 1000 series contains at least 99% by weight of aluminum.
2000 series copper alloy, the strength is comparable to steel. Formerly known as Dura Aluminum, it is a commonly used aerospace alloy, but it is susceptible to intergranular corrosion and is gradually replaced by the 7000 series.
3000 series manganese alloy with work hardening.
4000 series bismuth alloy, also known as bismuth aluminum.
5000 series magnesium alloy, which can solve work hardening and high strength.
6000 series magnesium-niobium alloy, easy to process, can be deposited and hardened, and the strength is comparable to steel.
7000 series zinc alloy, which can be hardened by precipitation and has the highest strength among all aluminum alloys.
8000 series mixing.

Commonly used aluminum alloy composition:
合金編號 Si Fe Cu Mn Mg Cr Zn Ti 其他 Al
6005A 0.50~0.9 0.35以下 0.30以下 0.50以下 0.4~0.7 0.30以下 0.20以下 0.10以下 0.05以下 0.15以下 餘量
6061 0.40~0.8 0.7以下 0.15~0.4 0.15以下 0.8~1.2 0.04~0.35 0.25以下 0.15以下 0.05以下 0.15以下 餘量
6063 0.20~0.6 0.35以下 0.10以下 0.10以下 0.45~0.9 0.10以下 0.10以下 0.10以下 0.05以下 0.15以下 餘量
Aluminium Extrusion Strength Reference Table
合金代號 調質 抗拉強度
N/mm²
降伏強度N/mm² 伸張率 勃氏硬度10/500 剪斷強度N/mm² 疲勞強度N/mm² 縱彈性係數kg/mm²
t1.6mm d12.7mm
6061 T4 240 145 22 22 65 165 95 7.0
T6 310 275 12 15 95 205 95 7.0
6063 T5 185 145 12 - 73 150 70 7.0
T6 240 215 12 - 73 150 70 7.0
6N01 T5 260 225 - 12 88 - 95 7.0
T6 285 225 - 12 95 - 100 7.0
Common Aluminium Alloy Heat Treatment
狀態 順序概要 說明
T5 高溫加工→冷卻→人工時效 熱加工後急冷再施以人工時效處理。人工時效處理的目的在提高材料的機械性質及尺寸的安定性適用於熱加工冷卻便有淬水效果的合金如:6063。
T6 固溶化熱處理→人工時效 溶體化處理後施以人工時效處理。此為熱處理合金代表性的熱處理,無須施以冷加工便能獲得優越的強度。於溶體化處理後為提高尺寸精度或矯正而施以冷加工,如不保證更高的強度時,亦可當作是T6鍊度。
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