LY11 十一号硬铝 2A11 - GJB 2379-1995

Grade	LY11
Other Names
Corresponding Standard	GJB 2379-1995 Specification for aluminium and aluminium alloys drawn(rolled) tubes for aerospace
Classification	Aluminum and Aluminum Alloys

LY11 Chemical Element Composition Content (%)

Component	Fe	Si	Mn	Ni	Cu	Ti	Zn	Mg	Other Individual	Other Total	More
Minimum Value	-	-	0.4	-	3.8	-	-	0.4	-	-	Al余量；Fe+Si≤0.7
Maximum Value	0.7	0.7	0.8	0.1	4.8	0.15	0.3	0.8	0.05	0.1	Al余量；Fe+Si≤0.7

"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.

Chemical composition in accordance with GB 3190-82
The four-character grades in the other names are from GB/T 3190-2008

LY11 Mechanical Properties

	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
All Sizes	LY11M	M	≤245	-	≥10
d＜22，t≤1	LY11CZ	CZ	≥370	≥196	≥13
d＜22，1.5≤t≤2	LY11CZ	CZ	≥370	≥196	≥14
22≤d≤50，t≤1	LY11CZ	CZ	≥390	≥225	≥12
22≤d≤50，1.5≤t≤5	LY11CZ	CZ	≥390	≥225	≥13
d＞50，t≤5	LY11CZ	CZ	≥390	≥225	≥11
Section Tube	LY11CZ	CZ	≥390	≥225	≥12

Code and condition: M (O) = Soft；Y (HX8) = Hard；Y2 (HX4) = Half-Hard；CZ (T4) = Solution Heat Treated + Natural Aging；CS (T6) = Solution Heat Treated + Artificial Aging; New code name in parentheses

LY11 Corresponding Standards(Same grade name, different standards)

1	GB /T 3190-2008
	(LY11) 2A11
2	GB /T 3190-2020
	(LY11) 2A11
3	GJB 2379-1995
	LY11 十一号硬铝 2A11
4	GB /T 3880.1-2012
	(LY11) 2A11

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