L5 五号工业纯铝 - GJB 2379-1995

Grade	L5
Other Names
Corresponding Standard	GJB 2379-1995 Specification for Aluminium and Aluminium Alloys Drawn(Rolled) Tubes for Aerospace
Classification	Aluminum and Aluminum Alloys

L5 Chemical Element Composition Content (%)

Component	Fe	Si	Cu	Al	Other Individual	Other Total	More
Minimum Value	-	-	-	99	-	-	Fe+Si≤0.9
Maximum Value	0.5	0.5	0.05	-	0.05	0.15	Fe+Si≤0.9

"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

L5 Mechanical Properties

	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %
All sizes, t≤2	L5Y	Y	≥108	≥4
All sizes, 2＜t≤5	L5Y	Y	≥98	≥5
All Sizes	L5M	M	≤118	≥20

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

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