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Chemical Composition of Aluminum (Hits:)

Origin Author Add Time2015-04-28

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Aluminum Alloy
Aluminum alloys are alloys in which aluminum (Al) is the predominant metal. The typical alloying elements are copper, magnesium, manganese, silicon and zinc. There are two principal classifications, namely casting alloys and wrought alloys, about 85% of aluminum is used for wrought products, for example rolled plate, foils and extrusions. Aluminum alloy surfaces will keep their apparent shine in a dry environment due to the formation of a clear, protective layer of aluminum oxide. In a wet environment, galvanic corrosion can occur when an aluminum alloy is placed in electrical contact with other metals with more negative corrosion potentials than aluminum.
The International Alloy Designation System is the most widely accepted naming scheme for wrought alloys. Each alloy is given a four-digit number, where the first digit indicates the major alloying elements.
1000 series are essentially pure aluminum with a minimum 99% aluminum content by weight and can be work hardened.
2000 series are alloyed with copper, can be precipitation hardened to strengths comparable to steel. Formerly referred to as duralumin, they were once the most common aerospace alloys, but were susceptible to stress corrosion cracking and are increasingly replaced by 7000 series in new designs.
3000 series are alloyed with manganese, and can be work hardened.
4000 series are alloyed with silicon. They are also known as silumin.
5000 series are alloyed with magnesium.
6000 series are alloyed with magnesium and silicon, are easy to machine, and can be precipitation hardened, but not to the high strengths that 2000 and 7000 can reach.
7000 series are alloyed with zinc, and can be precipitation hardened to the highest strengths of any aluminium alloy.
8000 series is a category mainly used for lithium alloys.

Wrought aluminium alloy composition limits (% weight)
Alloy	Si	Fe	Cu	Mn	Mg	Cr	Zn	V	Ti	Bi	Ga	Pb	Zr	Limits††		Al
Alloy	Si	Fe	Cu	Mn	Mg	Cr	Zn	V	Ti	Bi	Ga	Pb	Zr	Each	Total	Al
1050[6]	0.25	0.40	0.05	0.05	0.05			0.05						0.03		99.5 min
1060	0.25	0.35	0.05	0.03	0.03	0.03	0.05	0.05	0.03	0.03	0.03	0.03	0.03	0.03		99.6 min
1100	0.95 Si+Fe		0.05–0.20	0.05			0.10							0.05	0.15	99.0 min
1199[6]	0.006	0.006	0.006	0.002	0.006		0.006	0.005	0.002		0.005			0.002		99.99 min
2014	0.50–1.2	0.7	3.9–5.0	0.40–1.2	0.20–0.8	0.10	0.25		0.15					0.05	0.15	remainder
2024	0.50	0.50	3.8–4.9	0.30–0.9	1.2–1.8	0.10	0.25		0.15					0.05	0.15	remainder
2219	0.2	0.30	5.8–6.8	0.20–0.40	0.02		0.10	0.05–0.15	0.02–0.10				0.10–0.25	0.05	0.15	remainder
3003	0.6	0.7	0.05–0.20	1.0–1.5			0.10							0.05	0.15	remainder
3004	0.30	0.7	0.25	1.0–1.5	0.8–1.3		0.25							0.05	0.15	remainder
3102	0.40	0.7	0.10	0.05–0.40			0.30		0.10					0.05	0.15	remainder
4043	4.5–6.0	0.80	0.30	0.05	0.05		0.10		0.20					0.05	0.15	remainder
5052	0.25	0.40	0.10	0.10	2.2–2.8	0.15–0.35	0.10							0.05	0.15	remainder
5083	0.40	0.40	0.10	0.40–1.0	4.0–4.9	0.05–0.25	0.25		0.15					0.05	0.15	remainder
5086	0.40	0.50	0.10	0.20–0.7	3.5–4.5	0.05–0.25	0.25		0.15					0.05	0.15	remainder
5154	0.25	0.40	0.10	0.10	3.10–3.90	0.15–0.35	0.20		0.20					0.05	0.15	remainder
5356	0.25	0.40	0.10	0.10	4.50–5.50	0.05–0.20	0.10		0.06–0.20					0.05	0.15	remainder
5454	0.25	0.40	0.10	0.50–1.0	2.4–3.0	0.05–0.20	0.25		0.20					0.05	0.15	remainder
5456	0.25	0.40	0.10	0.50–1.0	4.7–5.5	0.05–0.20	0.25		0.20					0.05	0.15	remainder
5754	0.40	0.40	0.10	0.50	2.6–3.6	0.30	0.20		0.15					0.05	0.15	remainder
6005	0.6–0.9	0.35	0.10	0.10	0.40–0.6	0.10	0.10		0.10					0.05	0.15	remainder
6005A†	0.50–0.9	0.35	0.30	0.50	0.40–0.7	0.30	0.20		0.10					0.05	0.15	remainder
6060	0.30–0.6	0.10–0.30	0.10	0.10	0.35–0.6	0.05	0.15		0.10					0.05	0.15	remainder
6061	0.40–0.8	0.7	0.15–0.40	0.15	0.8–1.2	0.04–0.35	0.25		0.15					0.05	0.15	remainder
6063	0.20–0.6	0.35	0.10	0.10	0.45–0.9	0.10	0.10		0.10					0.05	0.15	remainder
6066	0.9–1.8	0.50	0.7–1.2	0.6–1.1	0.8–1.4	0.40	0.25		0.20					0.05	0.15	remainder
6070	1.0–1.7	0.50	0.15–0.40	0.40–1.0	0.50–1.2	0.10	0.25		0.15					0.05	0.15	remainder
6082	0.7–1.3	0.50	0.10	0.40–1.0	0.60–1.2	0.25	0.20		0.10					0.05	0.15	remainder
6105	0.6–1.0	0.35	0.10	0.10	0.45–0.8	0.10	0.10		0.10					0.05	0.15	remainder
6162	0.40–0.8	0.50	0.20	0.10	0.7–1.1	0.10	0.25		0.10					0.05	0.15	remainder
6262	0.40–0.8	0.7	0.15–0.40	0.15	0.8–1.2	0.04–0.14	0.25		0.15	0.40–0.7		0.40–0.7		0.05	0.15	remainder
6351	0.7–1.3	0.50	0.10	0.40–0.8	0.40–0.8		0.20		0.20					0.05	0.15	remainder
6463	0.20–0.6	0.15	0.20	0.05	0.45–0.9		0.05							0.05	0.15	remainder
7005	0.35	0.40	0.10	0.20–0.70	1.0–1.8	0.06–0.20	4.0–5.0		0.01–0.06				0.08–0.20	0.05	0.15	remainder
7022	0.50	0.50	0.50-1.00	0.10–0.40	2.60–3.70	0.10–0.30	4.30–5.20		0.20					0.05	0.15	remainder
7068	0-0.12	0-0.15	1.60-2.40	0–0.10	2.20–3.00	0–0.05	7.30–8.30		0-0.01				0.05–0.15			remainder
7072	0.7 Si+Fe		0.10	0.10	0.10		0.8–1.3							0.05	0.15	remainder
7075	0.40	0.50	1.2–2.0	0.30	2.1–2.9	0.18–0.28	5.1–6.1		0.20					0.05	0.15	remainder
7079	0.3	0.40	0.40–0.80	0.10–0.30	2.9–3.7	0.10–0.25	3.8–4.8		0.10					0.05	0.15	remainder
7116	0.15	0.30	0.50–1.1	0.05	0.8–1.4		4.2–5.2	0.05	0.05		0.03			0.05	0.15	remainder
7129	0.15	0.30	0.50–0.9	0.10	1.3–2.0	0.10	4.2–5.2	0.05	0.05		0.03			0.05	0.15	remainder
7178	0.40	0.50	1.6–2.4	0.30	2.4–3.1	0.18–0.28	6.3–7.3		0.20					0.05	0.15	remainder
†Manganese plus chromium must be between 0.12–0.50%. ††This column lists the limits that apply to all elements, whether a table column exists for them or not, for which no other limits are specified.

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keyworks:Aluminum parameters, the chemical composition of aluminum, aluminum forging, aluminum, aluminum alloy mechanical properties