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LJ
6061 aluminum is a heat-treatable alloy that can be strengthened. It has good formability, weldability, and machinability. At the same time, it has medium strength and can still maintain good operability after annealing. The main alloying elements of 6061 aluminum are Magnesium and silicon, and form the Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effect of iron; sometimes a small amount of copper or zinc is added to improve the strength of the alloy without significantly reducing its corrosion resistance; there is also a small amount of conductive materials Copper to offset the adverse effects of titanium and iron on conductivity; zirconium or titanium can refine grains and control recrystallization structure; in order to improve machinability, lead and bismuth can be added. The solid solution of Mg2Si in aluminum makes the alloy have the function of artificial aging hardening.
Chemical Composition(%)
| Cu | Mn | Mg | Zn | Cr | Ti | Si | Fe | Al |
| 0.15~0.4 | 0.15 | 0.8~1.2 | 0.25 | 0.04~0.35 | 0.15 | 0.4~0.8 | ≤0.7 | Bal |
Heat Treatment
Rapid annealing: heating temperature 350~410℃; depending on the effective thickness of the material, the holding time is between 30~120min; air or water cooling. 2 High temperature annealing: heating temperature 350~500℃; when the thickness of the finished product is ≥6mm, the holding time is 10~30min; 3 Low temperature annealing: heating temperature 150~250℃; holding time 2~3h; air or water cooling. Homogenization: 570 degrees Celsius, heat preservation for 7 hours, air cooling.
6061 aluminum is a heat-treatable alloy that can be strengthened. It has good formability, weldability, and machinability. At the same time, it has medium strength and can still maintain good operability after annealing. The main alloying elements of 6061 aluminum are Magnesium and silicon, and form the Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effect of iron; sometimes a small amount of copper or zinc is added to improve the strength of the alloy without significantly reducing its corrosion resistance; there is also a small amount of conductive materials Copper to offset the adverse effects of titanium and iron on conductivity; zirconium or titanium can refine grains and control recrystallization structure; in order to improve machinability, lead and bismuth can be added. The solid solution of Mg2Si in aluminum makes the alloy have the function of artificial aging hardening.
Chemical Composition(%)
| Cu | Mn | Mg | Zn | Cr | Ti | Si | Fe | Al |
| 0.15~0.4 | 0.15 | 0.8~1.2 | 0.25 | 0.04~0.35 | 0.15 | 0.4~0.8 | ≤0.7 | Bal |
Heat Treatment
Rapid annealing: heating temperature 350~410℃; depending on the effective thickness of the material, the holding time is between 30~120min; air or water cooling. 2 High temperature annealing: heating temperature 350~500℃; when the thickness of the finished product is ≥6mm, the holding time is 10~30min; 3 Low temperature annealing: heating temperature 150~250℃; holding time 2~3h; air or water cooling. Homogenization: 570 degrees Celsius, heat preservation for 7 hours, air cooling.
