LY12 十二号硬铝 - GJB 2507-1995

Grade	LY12
Other Names
Corresponding Standard	GJB 2507-1995 Specification for aluminium alloy extruded profiles for aerospace
Classification	Aluminum and Aluminum Alloys

LY12 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+Si:0.5
Maximum Value	0.5	0.5	0.9	0.1	4.9	0.15	0.3	1.8	0.05	0.15	Al余量；Fe+Si:0.5

"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.

LY12 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
≤5	CS	≥390	≥295	≥10
>5~10	CS	≥410	≥295	≥10
>10~20	CS	≥420	≥305	≥10
>20~40	CS	≥440	≥315	≥10
>40	CS	≥480	≥355	≥10
	M	≤245	-	≥12

LY12 Corresponding Standards(Same grade name, different standards)

1	GB /T 3190-2008
	(LY12) 2A12
2	GB /T 3190-2020
	(LY12) 2A12
3	GB /T 3191-2019
	(LY12) 2A12
4	GBn 167-1982
	LY12
5	YS /T 439-2001
	(LY12) 2A12
6	GJB 1741-1993
	(LY12) 2024 2A12
7	GJB 2507-1995
	LY12 十二号硬铝
8	GJB 2379-1995
	LY12 十二号硬铝 2A12
9	GJB 2662A-2008
	(LY12) 2A12
10	GB /T 3880.1-2012
	(LY12) 2A12

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