The OnlineMetals Guide to Aluminum
Next to steel, Aluminum is the most commonly used and commercially available metal. Its light weight and high strength-to-weight ratio make it a good choice for everything from aircraft to flashlights to jigs to just about anything else you can make out of metal.

 

Pure aluminum, primarily seen in the 1xxx series of wrought aluminum alloys, has little strength, but possesses high electrical conductivity, reflectivity, and corrosion resistance. For this reason, a wide variety of aluminum alloys have been developed.

 

OnlineMetals.com currently stocks eight alloys of aluminum in various shapes and sizes:
2011 Aluminum (available in Hex, Round)
2024 Aluminum (available in Hex, Plate, Rectangle, Round, Sheet, Square, Tube)
5052 Aluminum (available in Sheet)
6061 Aluminum (available in Angle, Channel, Hex, I-Beam, Pipe, Plate, Rectangle, Rectangle Tube, Round, Sheet, Square, Square Tube, Tube)
6063 Aluminum (available in Angle, Channel, Pipe, Rectangle, Rectangle Tube, Round, Square Tube, Tube)
6101 Aluminum (available in Pipe, Rectangle)
6262 Aluminum (available in Hex, Round)
7075 Aluminum (available in Hex, Plate, Rectangle, Round, Sheet, Square)
6060 Aluminum (available in Rectangle, Rectangle Tube, Round, Sheet, Square, Square Tube, Tube)
5086 Aluminum    (available in Sheet, Plate)
1100 Aluminum     (available in Sheet)

MIC 6

      (available in Plate)
3003 Aluminum     (available in Sheet)

1100 Aluminum 

1100-H14 Aluminum Sheet is known for its superior corrosion resistance, formability, conductivity and high weldability.

It is not often used as a high strength or hardness item like the 2024 alloy; rather it is used for chemical equipment, decorative trim and heat exchangers. It is nonmagnetic and not heat treatable.

1100-H14 Aluminum
Minimum Properties Ultimate Tensile Strength, psi 18,000
Yield Strength, psi 13,800
Brinell Hardness 32
Rockwell Hardness --
Chemistry Aluminum (Al) 99-99.95%
Silicon (Si) 0-1%
Iron (Fe) 0-1%
Copper (Cu) 0.05%- 0.2%
Zinc (Zn) 0-0.1%
Manganese (Mn) 0 - 0.05%
Residuals 0-.15%

 

 

2011 Aluminum
2011 is the most machinable of the commonly available aluminum alloys. Machining this alloy can produce excellent surface finishes on your product, and small, broken chips.

 

Weldability, strength, and anodizing response are all rated as average at best, and this alloy does not have a high degree of corrosion resistance.

 

If the ability to make your part quickly is important to you, and strength is not the primary desire, 2011 represents a good choice if you're using aluminum.

 

2011-T3 Aluminum
Minimum Properties Ultimate Tensile Strength, psi 55,000
Yield Strength, psi 43,000
Brinell Hardness 95
Rockwell Hardness B60
Chemistry Aluminum (Al) 91.2 - 94.6%
Bismuth (Bi) 0.2 - 0.6%
Copper (Cu) 5.0 - 6.0%
Iron (Fe) 0.7% max
Magnesium (Mg) 2.1 - 2.9%
Lead (Pb) 0.2 - 0.6%
Silicon (Si) 0.4% max

 

2024 Aluminum
Copper is the main alloying ingredient in 2024. It is very strong compared to most aluminum alloys, and has average machinability, but the copper component of this alloy makes it susceptible to corrosion (many items in this alloy are produced with a clad surface to protect the underlying material.) In addition, 2024 is not considered to be weldable.

 

Finally, the fatigue resistance of 2024 make it a primary choice when the application is expected to be under stress or strain for prolonged periods. It is commonly used in aerospace applications.

 

2024-T3 Aluminum
Minimum Properties Ultimate Tensile Strength, psi 70,000
Yield Strength, psi 50,000
Brinell Hardness 120
Rockwell Hardness B75
Chemistry Aluminum (Al) 90.7 - 94.7%
Chromium (Cr) 0.1% max
Copper (Cu) 3.8 - 4.9%
Iron (Fe) 0.5% max
Magnesium (Mg) 1.2 - 1.8%
Manganese (Mn) 0.3 - 0.9%
Silicon (Si) 0.5% max

 

3003 Aluminum 

Aluminum Sheet 3003 H14 Bare is an excellent choice for chemical equipment and general sheet metal projects due to its superior corrosion resistance and good workability. Aluminum 3003 H14 bare sheet works well in fabrication and decorative architectural uses because it is highly workable, formable, and weldable, while being capable of withstanding outdoor weather.

3003-H14 Aluminum
Minimum Properties Ultimate Tensile Strength, psi 22,000
Yield Strength, psi 21,000
Brinell Hardness 40
Rockwell Hardness --
Chemistry Aluminum (Al) 96.8-99%
Manganese (Mn) 1-1.5%
Iron (Fe) 0-0.7%
Silicon (Si) 0- 0.6%
Copper (Cu) 0.05-0.2%
Zinc (Zn) 0 - 0.1%
Residuals 0-0.15%

 

5052 Aluminum
5052 is the alloy most suited to forming operations, with good workability and higher strength than that of the 1100 or 3003 alloys that are commercially available.

 

5052 is not heat-treatable, but is stronger than most of the 5xxx series of alloys. It has very good corrosion resistance, and can be easily welded. 5052 is not a good choice for extensive machining operations, as it has only a fair machinability rating.

 

5052-H32 Aluminum
Minimum Properties Ultimate Tensile Strength, psi 33,000
Yield Strength, psi 28,000
Brinell Hardness 60
Chemistry Aluminum (Al) 95.7 - 97.7%
Chromium (Cr) 0.15 - 0.35%
Copper (Cu) 0.1% max
Iron (Fe) 0.4% max
Magnesium (Mg) 2.2 - 2.8%
Manganese (Mn) 0.1% max
Silicon (Si) 0.25% max

 

5086 Aluminum

5086-H32 Aluminum Sheet is frequently found in marine applications, with higher strength capacity than Aluminum Alloy 5052 or Aluminum Alloy 5083.  Aluminum Alloy 5086 has superior corrosion resistance and good formability. Aluminum Alloy 5086 is non-magnetic and heat treatable

 

5086-H32 Aluminum
Minimum Properties Ultimate Tensile Strength, psi 42,000
Yield Strength, psi 30,000
Brinell Hardness 80
Chemistry Aluminum (Al) 93 - 96.3%
Magnesium (Mg) 3.5-4.5%
Manganese (Mn) 0.2-0.7%
Iron (Fe) 0-0.5%
Silicon (Si) 0-0.4%
Chromium (Cr) 0.05-0.25%
Zinc (Zn) 0-0.25%

                        Titanium (Ti)                                     0-0.15%         

                           Copper (Cu)                                         0-0.1%         

6060 Aluminum

6060 Aluminum is a medium strenth alloy more closely related to 6063 than to 6061 but will have more magnesium than 6063.  This alloy is mainly found in Europe with metric sizes and is commonly heat treated to a temper with higher strength but low ductility.  6060 alloy is very good for anodizing 

 

The main alloy ingredients of 6060 aluminum are magnesium and silicon.

 

6060-T6 Aluminum
Physical and Mechanical Properties Ultimate Tensile Strength, psi 32,000
Yield Strength, psi 24,000
Brinell Hardness 60
Rockwell Hardness --
Chemistry Aluminum (Al) 97.9 - 99.3%
Magnesium (Mg) 0.35-0.6%
Silicon (Si) 0.3-0.6%
Iron (Fe) 0.1-0.3%
Zinc (Zn) 0 -0.15%
Manganese (Mn) 0-0.1%
Titanium (Ti) 0- 0.1%
Copper (Cu) 0-0.1%

Chromium (Cr)                       0-0.50%      

 

6061 Aluminum

6061 Aluminum is, by most any measure, the most commonly used aluminum alloy. It is specified in most any application due to its strength, heat treatability, comparatively easy machining, and weldability. If that were not enough, it is also capable of being anodized, adding a layer of protection for finished parts.

 

The main alloy ingredients of 6061 aluminum are magnesium and silicon.

 

6061-T6 Aluminum
Physical and Mechanical Properties Ultimate Tensile Strength, psi 45,000
Yield Strength, psi 40,000
Brinell Hardness 95
Rockwell Hardness B60
Chemistry Aluminum (Al) 95.8 - 98.6%
Chromium (Cr) 0.04 - 0.35%
Copper (Cu) 0.15 - 0.40%
Iron (Fe) 0.70%
Magnesium (Mg) 0.8 - 1.2%
Manganese (Mn) 0.15% max
Silicon (Si) 0.4 - 0.8%
Zinc (Zn) 0.25%

 

6063 Aluminum
6063 is often called architectural aluminum for two reasons - first, it has a surface finish that is far smoother than the other commercially available alloys, and second, its strength is significantly less (roughly half the strength of 6061), making it suited for applications where strength is not the foremost consideration.

 

6063 is rated as "Good" for forming and cold working operations, "Excellent" for anodizing, and "Fair" for machining.

 

6063-T52 Aluminum
Minimum Properties Ultimate Tensile Strength, psi 27,000
Yield Strength, psi 21,000
Brinell Hardness 60
Chemistry Aluminum (Al) 97.5% max
Chromium (Cr) 0.1% max
Copper (Cu) 0.1% max
Iron (Fe) 0.35% max
Magnesium (Mg) 0.45 - 0.90%
Manganese (Mn) 0.1% max
Silicon (Si) 0.2 - 0.6%

 

6101 Aluminum
6101 is best suited for applications involving moderate strength and maximum electrical conductivity. It is similar to alloy 6063, but with minor chemistry changes which enhance electrical conductivity. Although slightly lower in conductivity than alloy 1350, it offers greater strength. Its most typical application is bus bar.

 

6101-T6 Aluminum
Physical and Mechanical Properties Ultimate Tensile Strength, psi 32,000
Yield Strength, psi 28,000
Brinell Hardness 71
Electrical Conductivity 57% IACS
Chemistry Aluminum (Al) 97.6%
Chromium (Cr) 0.03%
Copper (Cu) 0.10%
Iron (Fe) 0.50%
Magnesium (Mg) 0.35 - 0.80%
Manganese (Mn) 0.03% max
Silicon (Si) 0.3 - 0.7%
Boron (Si) 0.06%

 

6262 Aluminum
6262 was designed as an aluminum alloy for operations where significant machining is required. It contains lead and bismuth to help with chip creation and breakage, as well as to partially lubricate the cutting tool. It is generally regarded as having good strength and corrosion resistance. Finished parts can be produced with a high level of polishing.

 

6262-T6511 Aluminum
Minimum Properties Ultimate Tensile Strength, psi 31,900
Yield Strength, psi 27,600
Brinell Hardness 71
Chemistry Aluminum (Al) 94.6 - 97.8%
Chromium (Cr) 0.04 - 0.14%
Copper (Cu) 0.15 - 0.40%
Iron (Fe) 0.7% max
Magnesium (Mg) 0.8 - 1.2%
Manganese (Mn) 0.15% Max
Bismuth (Bi) 0.4 - 0.7%
Silicon (Si) 0.4 - 0.8%
Lead (Pb) 0.4 - 0.7%

 

7075 Aluminum

 

7075 is the other "aircraft grade" aluminum that is carried by OnlineMetals. Its principal alloying ingredients are zinc and copper, which make it one of the highest-strength aluminum alloys that are available. In fact, its typical strength in the T6 temper is higher than most mild steels.

 

7075 also has average-to-good ratings for machinability, corrosion resistance, and anodizing response. Like 2024, however, it is not considered to be weldable.
7075-T6 Aluminum
Physical and Mechanical Properties Ultimate Tensile Strength, psi 83,000
Yield Strength, psi 73,000
Brinell Hardness 150
Rockwell Hardness B87
Chemistry Aluminum (Al) 87.1 - 91.4%
Zinc (Zn) 5.1 - 6.1% max
Copper (Cu) 1.2 - 2.0%
Chromium (Cr) 0.18 - 0.28%
Iron (Fe) 0.5 max
Magnesium (Mg) 2.1 - 2.9%
Manganese (Mn) 0.3% max

 

MIC6 Aluminum

 Aluminum  MIC-6 ® is cast plate known for its stability and consistency between plates. It has superior flatness and dimensional tolerances on the thickness which makes it popular for tooling and base plates.  

 

Aluminum  MIC-6 ® is a registered trademark of Alcoa

 

MIC6 Aluminum
Physical and Mechanical Properties Ultimate Tensile Strength, psi 23,900
Yield Strength, psi 15,200
Brinell Hardness 65
Rockwell Hardness --
     
   

aluminum pipe