B211 2024 - ASTM B211/B211M-2019

Grade	B211 2024
Corresponding Standard	ASTM B211/B211M-2019 Standard Specification for Aluminum and Aluminum-Alloy Rolled or Cold Finished Bar, Rod, and Wire
Classification	Aluminum and Aluminum Alloys

B211 2024 Chemical Element Composition Content (%)

Component	Fe	Si	Mn	Cr	Cu	Ti	Zn	Mg	Other Individual	Other Total	More
Minimum Value	-	-	0.3	-	3.8	-	-	1.2	-	-	Al余量
Maximum Value	0.5	0.5	0.9	0.1	4.9	0.15	0.25	1.8	0.05	0.15	Al余量

"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.

B211 2024 Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
d≤3.2	Annealing (O)	≤240
3.2＜d≤200	Annealing (O)	≤240		in 50mm ≥16
d≤3.2	Solution heat treatment + cold working deformation approx. 6% + natural aging (T36)	≥475
3.2＜d≤200	Solution heat treatment + cold working deformation approx. 6% + natural aging (T36)	≥475	≥360	in 50mm ≥10
d≤3.2	Solution Heat Treatment + Natural Aging (T4)	≥425
3.2＜d≤12.5	Solution Heat Treatment + Natural Aging (T4)	≥425	≥310	in 50mm ≥10
12.5＜d≤120	Solution Heat Treatment + Natural Aging (T4)	≥425	≥290	5*diameter(5.65√A) ≥9
120＜d≤160	Solution Heat Treatment + Natural Aging (T4)	≥425	≥275	5*diameter(5.65√A) ≥9
160＜d≤200	Solution Heat Treatment + Natural Aging (T4)	≥425	≥260	5*diameter(5.65√A) ≥9
d≤3.2	Solution Heat Treatment + Natural Aging (T42)	≥400
3.2＜d≤25	Solution Heat Treatment + Natural Aging (T42)	≥425	≥275	in 50mm ≥10
25＜d≤160	Solution Heat Treatment + Natural Aging (T42)	≥425	≥275	5*diameter(5.65√A) ≥9
12.5＜d≤160	Solution heat treatment + stress relieving by stretching (T351)	≥425	≥310	5*diameter(5.65√A) ≥9
160＜d≤200	Solution heat treatment + stress relieving by stretching (T351)	≥425	≥310	5*diameter(5.65√A) ≥8
d≤3.2	Solution Heat Treatment + Artificial Aging (T6)	≥425
3.2＜d≤160	Solution Heat Treatment + Artificial Aging (T6)	≥425	≥345	in 50mm ≥5
d≤3.2	Solution Heat Treatment + Artificial Aging (T62)	≥415
3.2＜d≤160	Solution Heat Treatment + Artificial Aging (T62)	≥415	≥315	in 50mm ≥5
12.5＜d≤160	Precipitation heat treatment (T851)	≥455	≥400	5*diameter(5.65√A) ≥4

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