7000 series aluminum

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7000 series aluminum alloys mainly consists of alloy elements such as zinc. With few amount of magnesium alloy allows the material to undergo heat treatment so that it achieves high strength. Grade 7075 aluminium alloy has the highest strength among them and wide range of usage in aircraft frame and high-strength accessories.

Sainty provides various grades of 7000 series aluminum alloy bars and have mass storage of it. Kindly contact us for further information.

Material grade and chemical composition

Grade	Chemical composition (Quality score)(%)													Remarks
	Si	Fe	Cu	Mn	Mg	Cr	Zn		Ti	Zr	Others		Al	(Previous grade)
	(Silicon)	(Iron)	(Copper)	(Manganese)	(Magnesium)	(Chromium)	(Zinc)		(Titanium)	(Zirconium)	Per pc	Total	(Aluminum)
7A01	0.3	0.3	0.01	-	-	-	0.9～1.3	Si+Fe：0.45	-	-	0.05	-	remainder	LB1
7A03	0.2	0.2	1.8～2.4	0.1	1.2～1.6	0.05	6.0～6.7	-	0.02～0.08	-	0.05	0.1	remainder	LC3
7A04	0.5	0.5	1.4～2.0	0.20～0.6	1.8～2.8	0.10～0.25	5.0～7.0	-	0.1	-	0.05	0.1	remainder	LC4
7A05	0.25	0.25	0.2	0.15～0.40	1.1～1.7	0.05～0.15	4.4～5.0	-	0.02～0.06	0.10～0.25	0.05	0.15	remainder	705
7A09	0.5	0.5	1.2～2.0	0.15	2.0～3.0	0.16～0.30	5.1～6.1	-	0.1	-	0.05	0.1	remainder	LC9
7A10	0.3	0.3	0.50～1.0	0.20～0.35	3.0～4.0	0.10～0.20	3.2～4.2	-s	0.1	-	0.05	0.1	remainder	LC10
7A15	0.5	0.5	0.50～1.0	0.10～0.40	2.4～3.0	0.10～0.30	4.4～5.4	Be：0.005～0.01	0.05～0.15	-	0.05	0.15	remainder	LC15
7A19	0.3	0.4	0.08～0.30	0.30～0.50	1.3～1.9	0.10～0.20	4.5～5.3	Be：0.0001～0.004②	-	0.08～0.20	0.05	0.15	remainder	LC19
7A31	0.3	0.6	0.10～0.40	0.20～0.40	2.5～3.3	0.10～0.20	3.6～4.5	Be：0.0001～0.004②	0.02～0.10	0.08～0.25	0.05	0.15	remainder	183-1
7A33	0.25	0.3	0.25～0.55	0.05	2.2～2.7	0.10～0.20	4.6～5.4	-	0.05	-	0.05	0.1	remainder	LB733
7A52	0.25	0.3	0.05～0.20	0.20～0.50	2.0～2.8	0.15～0.25	4.0～4.8	-	0.05～0.18	0.05～0.15	0.05	0.15	remainder	LC52
7003	0.3	0.35	0.2	0.3	0.50～1.0	0.2	5.0～6.5	-	0.2	0.05～0.25	0.05	0.15	remainder	LC12
7005	0.35	0.4	0.1	0.20～0.7	1.0～1.8	-	4.0～5.0	-	0.01～0.06	0.058～0.20	0.05	0.15	remainder	-
7020	0.35	0.4	0.2	0.05～0.50	1.0～1.4	0.10～0.35	4.0～5.0	Zr+Ti：0.08～0.25	-	0.08～0.20	0.05	0.15	remainder	-
7022	0.5	0.5	0.50～1.0	0.10～0.40	2.6～3.7	0.10～0.30	4.3～5.2	Zr+Ti：0.20	-	-	0.05	0.15	remainder	AlZn5Mg3Cu
7050	0.12	0.15	2.0～2.6	0.1	1.9～2.6	0.04	5.7～6.7	-	0.06	0.08～0.15	0.05	0.15	remainder	AlZn6CuMgZr
7075	0.4	0.5	1.2～2.0	0.3	2.1～2.9	0.18～0.28	5.1～6.1	⑤	0.2	-	0.05	0.15	remainder	AlZn5.5MgCu
7475	0.1	0.12	1.2～1.9	0.06	1.9～2.6	0.18～0.25	5.2～6.2	-	0.06	-	0.05	0.15	remainder	AlZn5.5MgCu