6061 aluminum blocks

Oct 26, 2021

6061 aluminum block has good formability, weldability and machinability.
Magnesium-aluminum 6061-T651 is the main alloy of the 6-series alloy, and it is a high-quality aluminum alloy product that has undergone heat treatment and pre-stretching. It has excellent characteristics such as easy coloring film and excellent oxidation effect.
product description

6061 aluminum block is a heat-treated reinforced alloy, which has good formability, weldability, machinability, and at the same time has medium strength, and can maintain good operability after annealing. The main alloying elements of 6061 aluminum block are Magnesium and silicon, and form the Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effects of iron; sometimes a small amount of copper or zinc is added to improve the strength of the alloy without ficantly reducing its corrosion resistance; there is still a small amount of conductive material. copper to offset the adverse effects of titanium and iron on electrical conductivity; zirconium or titanium can refine grains and control recrystallization; in order to improve machinability, lead and bismuth can be added. Mg2Si is solid-dissolved in aluminum, which makes the alloy have artificial aging hardening function.

The main alloying elements of 6061 aluminum block are magnesium and silicon, which form the Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effects of iron; sometimes a small amount of copper or zinc is added to improve the strength of the alloy without ficantly reducing its corrosion resistance; there is still a small amount of conductive material. copper to offset the adverse effects of titanium and iron on electrical conductivity; zirconium or titanium can refine grains and control recrystallization; in order to improve machinability, lead and bismuth can be added. Mg2Si is solid-dissolved in aluminum, which makes the alloy have artificial aging hardening function. The main alloying elements in 6061 aluminum block are magnesium and silicon, which have medium strength, good corrosion resistance, weldability, and good oxidation effect.
chemical composition
Copper Cu: 0.15～0.4 Manganese Mn: 0.15 Magnesium Mg: 0.8～1.2 Zinc Zn: 0.25 Chromium Cr: 0.04～0.35 Titanium Ti: 0.15 Silicon Si: 0.4～0.8 Iron Fe: 0.7 Aluminum Al: remainder
Mechanical properties
The ultimate tensile strength of 6061 aluminum block is 124 MPa, tensile yield strength 55.2 MPa, elongation 25.0 %, elastic modulus 68.9 GPa, bending ultimate strength 228 MPa, Bearing Yield Strength 103 MPa, Poisson's ratio 0.330, fatigue strength 62.1 MPa
Heat treatment process
Rapid annealing: the heating temperature is 350-410℃; the holding time is between 30-120min depending on the effective thickness of the material; air or water cooling. 2 High temperature annealing: the heating temperature is 350～500℃; when the thickness of the finished product is ≥6mm, the holding time is 10～30min, and when it is less than 6mm, the heat is penetrated; the air is cold. 3 Low temperature annealing: heating temperature 150 ~ 250 ℃; holding time 2 ~ 3h; air or water cooling. 6061 aluminum block density is 0.0000028

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