General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
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. Second, its strength is significantly less than most other aluminum alloys. 6063 has 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. It is typically used in pipe, railing, furniture, and decorative materials.
Aluminum 6063 Specifications
- ASTM
- B221
- B249
- AMS
- QQ-A-200/9
Common Applications of 6063
- Pipe
- Railing
- Furniture
- Decorative Hardware
Common Trade Names
- UNS A96063,
- ISO AlMg0.5Si,
- AA6063-T52,
- Al6063-T52,
- AA6063-T6,
- Al6063-T6
Chemical Composition
6063 Chemical Composition
Element
Percent by Weight
Al
Aluminum
98.9 max
Cr
0.1 max
Mn
Manganese
0.1 max
Si
Silicon
0.2-0.6
Cu
0.1max
Mg
0.45 – 0.90
Fe
0.35 max
Zn
0.10 max
Ti
Iron
0.1 max
Physical Properties
Physical properties 6063
Density | Ultimate Tensile Strength | Yield Tensile Strength | Fatigue Strength | |
Imperia | 0.1 lb/in3 | 27,000 psi | 21,000 ps | 10,000 psi |
Metric | 2.7 g/cc | 186 MPa | 145 MPa | 68.9 MPa |
Mechanical Properties
Mechanical Properties 6063
Mechanical property | ||||
Modulus of Elasticity | Shear Modulus | Shear Strength | Melting Point | |
Imperial | 10,000 ksi | 3,740 ksi | 17,000 psi | 1,140-1,210 F |
Metric | 68.9 GPa | 25.8 GPa | 117 MPa | 616-654 C |
Mechanical property | |||
Electrical Conductivity | Hardness Brinell | Elongation at Break Percentage | Poissons Ratio |
49% IACS | 60 | 18 | 0.33 |

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