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Alloy AA 6061
The most versatile of the heat-treatable aluminium alloys, Alloy AA 6061 preserves most of the good qualities of aluminium. It is a medium strength structural alloy. This grade has a great range of mechanical properties and corrosion resistance. It can be fabricated with most of the commonly used techniques and has good workability in the annealed conditions. It can be welded by all methods and furnace brazed. Because of this, it’s widely used in a wide range of products and applications where appearance and better corrosion resistance with good strength are required
CHARACTERISTICS
| WELDING | Alloy 6061 is readily welded by the MIG and TIG processes. Recommended filler alloy is 5356. Alloy 4043 may also be used for general welding except when welding 6061 to aluminium-magnesium alloys. |
| RIVERTS | Alloy 6053-T61 |
| MACHINING | Readily machined in all tempers given |
| FORMING | All tempers may be formed, the softer tempers accepting more severe forming |
| CORROSION | Excellent resistance to the atmosphere, fresh waters and many soils. Fair resistance to seawater. Good general corrosion resistance in structural application. |
TEMPER AVAILABLE
| EXTRUSIONS | T6 |
| SHEETS & PLATES | H32 |
CHEMICAL COMPOSITION
| SILICON (Si) | IRON (Fe) | COPPER (Cu) | MAGANESE (Mn) | MAGNESIUM (Mg) | CHROMIUM (Cr) | ZINC (Zn) | TITANIUM (Ti) | OTHERS (Each) | OTHERS (Total) | ALUMINIUM (Al) |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.40-0.80 | 0.00-0.70 | 0.15-0.40 | 0.00-0.15 | 0.80-1.20 | 0.04-0.35 | 0.00-0.25 | 0.05-0.15 | 0.00-0.05 | 0.00-0.15 | REMAINDER |
MECHANICAL PROPERTIES
| TEMPER | THICKNESS (mm) | ULTRA STRENGTH Min. | 0.2% STRESS | HARDNESS BRINELL (HB) | HARDNESS BRINELL (HB) | |
|---|---|---|---|---|---|---|
| Min. (Mpa) | Max. (Mpa) | |||||
| T4 | ALL | 180 | 110 | - | 16 | 75 |
| T6 | UP TO 6.3 | 260 | 240 | - | 8 | 105 |
| OVER 6.3 | 260 | 240 | - | 10 | - | |
PHYSICAL PROPERTIES
| DENSITY | MELTING POINT | OEFFICIENT OF LINEAR EXPANSION BETWEEN 20 - 100°C | SPECIFIC HEAT BETWEEN 20-100°C |
|---|---|---|---|
| 2.71 g/cm3 | 580-650 °C | 24 x 10 -6 / K | 920 J/kg.K |
| MODULUS OF RIGIDITY | MODULUS OF ELASTICITY | THERMAL CONDUCTIVITY AT 25°C | ELECTICAL RESISTIVITY AT 20°C |
|---|---|---|---|
| 69000 N/mm2 | 26000 N/mm2 | 1.67 W/cm.K | 0.040μΩmm |
GRADE APPLICATION
- Aircraft (Structure/Tube)
- Architectural
- Building Products
- Boat Building
- Chemical Equipment
- Electrical
- Fasteners & Fittings
- General Fabrication
- Marine Applications
- Piping
- Recreation Equipment
- Sheet Metal Work
- Storage Tanks
- Structural Applications
- Trucks Frames & Trailers
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