Commonly Used ASTM 6061 Aluminium Ignots in Aircraft Structures

Discription of 6061 Aluminium Ignots:
6061 is a precipitation-hardened aluminium alloy, containing magnesium and silicon as its major alloying elements. Originally called "Alloy 61S", it was developed in 1935.It has good mechanical properties, exhibits good weldability, and is very commonly extruded (second in popularity only to 6063).It is one of the most common alloys of aluminium for general-purpose use.
It is commonly available in pre-tempered grades such as 6061-O (annealed), tempered grades such as 6061-T6 (solutionized and artificially aged) and 6061-T651 (solutionized, stress-relieved stretched and artificially aged).
Machinability:
Aluminium / Aluminum 6061 alloy has good machinability in harder T 4 and T6 tempers. It can be machined in annealed temper.
Forming:
Aluminium / Aluminum 6061 alloy can be easily formed and worked in the annealed condition. The standard methods are used to perform bending, stamping, deep drawing, and spinning operations.
Welding:
Aluminium / Aluminum 6061 alloy has excellent weldability. Thinner sections can be welded using gas tungsten arc welding technique. Heavier sections can be welded using gas metal arc welding technique. Alloy 4043 filler wire can be used to achieve good result, but it will affect T 6 properties.
Heat Treatment:
Aluminium / Aluminum 6061 alloy is heat treated at 533°C (990°F) for a sufficient period of time followed by quenching in water. Precipitation hardening process can be performed at 160°C (320°F) for 18 h followed by air cooling. This process is again repeated at 177°C (350°F) for 8 h followed by cooling in air.
Forging:
Aluminium / Aluminum 6061 alloy is forged at 233 to 483°C (750 to 900°F).
Hot Working:
Aluminium / Aluminum 6061 alloy is hot worked at 260 to 372°C (500 to 700°F).
Cold Working:
Aluminium / Aluminum 6061 alloy is cold worked in the O temper condition. It can also be cold formed in the T 4 and T 6 tempers.
Annealing:
Annealing of Aluminium / Aluminum 6061 alloy can be performed at 775°F for 2 to 3 h followed by controlled cooling at 10 to 260°C (50 to 500°F) per hour, and air cooling.
Aging:
Aging of Aluminium / Aluminum 6061 alloy can be performed at 177°C (350°F) for 8 h. It is then cooled in air.
Applications:
Aluminium / Aluminum 6061 alloy is used in the following applications:
Truck and marine components
Furniture
General structural and high pressure applications
Pipelines
Heavy-duty structures
Railroad cars
Tank fittings

Principal Design Features:
This is a precipitation hardening alloy with good strength after heat treatment.
Machinability:
Machinability is good in the annealed condition, somewhat more difficult in the heat treated conditions. For lathe cutting use 15 degree top rake, 20 degree side rake and 10 degree clearance. Use of a lubricant, such as oil or kerosene, is recommended for all machining.
Forming:
The alloy may be formed by conventional means. However tight bend radius should be avoided and forming is best done in the T4 or T3 temper.2:Chemical Composition Of Our Main Grades And Designations:

The aluminum industry has created asystem using afour-digit numerical designation to identify wrought aluminum alloys.The first digit indicates the major alloying element.The second digit indicates whether there was amodification in the basic alloy.The third and fourth digit indicates the specific alloy.The following represent the various groups:1XXXAluminum 99% or greater2XXXCopper -major alloying element3XXXManganese -major alloying element5XXXMagnesium -major alloying element6XXXMagnesium and silicon -major alloying elements7XXXZinc -major alloying element
4:AlumiNum Alloy Circle Package:5:about us:
Tianjin Zhongyantiancheng Steel Co.,Ltd(short for ZYTC )is aprofessional manufacturer and exporter of steel products in China, located in Tianjin Beichen District, having the biggest port in North China.
With 20 years of development, the group has become the leader in steel, product variety, complete specifications and so on in North China market, large inventories more than 100,000 tons are maintained all the time.
ZYTC is specialized in steel products, especially Stainless steel pipe,Stainless steel bar,Stainless steel plate (TG,KSK,BG,Krupp), Round bar(SHOUGANG,DAYE), Spiral pipe(LIDA), Aluminum steel plate,Aluminum pipe ,Copper and so on .
ZYTC has cooperated with Tianjin Seamless Steel Tube Plant(TPCO), Baotou Steel Pipe Plant, Chengdu Steel Pipe Plant, Anshan Steel Pipe Plant,Baoshan Steel Pipe Plant and other steel pipe plants.Round bar cooperated with Beijing shougang goup,Tonggang steel group, Daye steel bar group ,Benxi bengang group an so on ,Baotai titanium group,Baoji Lixing group,Stainless steel plate cooperated with Shanxi TAIGANG Steel Plate grouop,Baogang group,Shanghai Kelubo group ,and Puxiang steel group. all these corporations mentioned above are our shareholder partners.
ZYTC principle is: supplying the best products and service,being the best supplier.
The company can make steel product according to particular specifications and materials. ZYTC will perfect our quality management system and supply products of high quality to our customers.
We are all looking forward to establishing business relationships with customers all over the world!