2A12 - GJB 1741A-2008

Grade	2A12
Corresponding Standard	GJB 1741A-2008 Specification for stretched plates of aluminium alloys
Classification	Aluminum and Aluminum Alloys

2A12 Chemical Element Composition Content (%)

Component	Fe	Si	Mn	Ni	Cu	Ti	Zn	Mg	Other Individual	Other Total	More
Minimum Value	-	-	0.3	-	3.8	-	-	1.2	-	-	Al余量；Fe+Ni≤0.50
Maximum Value	0.5	0.5	0.9	0.1	4.9	0.15	0.3	1.8	0.05	0.1	Al余量；Fe+Ni≤0.50

"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.

2A12 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
6.3~12.5	T351	≥440	≥290	A50mm ≥12
>12.5~25	T351	≥435	≥290	A ≥7
>25~40	T351	≥425	≥290	A ≥6
>40~50	T351	≥425	≥290	A ≥5
>50~80	T351	≥415	≥290	A ≥3
>80~100	T351	≥395	≥285	A ≥3
6.3~12.5	T851	≥460	≥400	A50mm ≥5
>12.5~25	T851	≥455	≥400	A ≥4
>25~40	T851	≥455	≥395	A ≥4

2A12 Corresponding Standards(Same grade name, different standards)

1	GB /T 3190-2008
	2A12 (LY12)
2	GB /T 3190-2020
	2A12 (LY12)
3	GB /T 3191-2019
	2A12 (LY12)
4	GJB 1741A-2008
	2A12
5	GJB 2053A-2008
	2A12
6	YS /T 439-2001
	2A12 (LY12)
7	GJB 1741-1993
	2A12 2024 (LY12)
8	GJB 2379-1995
	2A12 LY12 十二号硬铝
9	GJB 2662A-2008
	2A12 (LY12)
10	GJB 6470-2008
	2A12
11	GB /T 3880.1-2012
	2A12 (LY12)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!