24 July 2021 5000 Series Aluminum Alloy
5056 Aluminum Alloy Plate
5056 is an Al-Mg series anti-rust aluminum alloy, which cannot be strengthened by heat treatment. The chemical composition of this alloy is basically similar to that of 5B05 alloy except for its low manganese content. The magnesium content is slightly higher than that of 5A05 alloy, and its properties are basically similar to those of 5B05 alloy. The alloy has good plasticity in the annealed state, its corrosion resistance is good, and the weldability is acceptable.
Chemical Composition:
| Component Elements Properties | Metric | English |
|---|---|---|
| Aluminum, Al | 92.9 - 95.4 % | 92.9 - 95.4 % |
| Chromium, Cr | 0.05 - 0.20 % | 0.05 - 0.20 % |
| Copper, Cu | <= 0.10 % | <= 0.10 % |
| Iron, Fe | <= 0.40 % | <= 0.40 % |
| Magnesium, Mg | 4.5 - 5.6 % | 4.5 - 5.6 % |
| Manganese, Mn | 0.05 - 0.20 % | 0.05 - 0.20 % |
| Other, each | <= 0.05 % | <= 0.05 % |
| Other, total | <= 0.15 % | <= 0.15 % |
| Silicon, Si | <= 0.30 % | <= 0.30 % |
| Zinc, Zn | <= 0.10 % | <= 0.10 % |
Mechanical Properties:
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Brinell | 65 | 65 | AA; Typical; 500 g load; 10 mm ball |
| Hardness, Knoop | 88 | 88 | Converted from Brinell Hardness Value |
| Hardness, Vickers | 75 | 75 | Converted from Brinell Hardness Value |
| Tensile Strength, Ultimate | 290 MPa | 42000 psi | AA; Typical |
| 41.0 MPa @Temperature 371 °C | 5950 psi @Temperature 700 °F | ||
| 76.0 MPa @Temperature 316 °C | 11000 psi @Temperature 601 °F | ||
| 110 MPa @Temperature 260 °C | 16000 psi @Temperature 500 °F | ||
| 152 MPa @Temperature 204 °C | 22000 psi @Temperature 399 °F | ||
| 214 MPa @Temperature 149 °C | 31000 psi @Temperature 300 °F | ||
| 290 MPa @Temperature 24.0 °C | 42100 psi @Temperature 75.2 °F | ||
| Tensile Strength, Yield | 152 MPa | 22000 psi | AA; Typical |
| 28.0 MPa @Temperature 371 °C | 4060 psi @Temperature 700 °F | ||
| 48.0 MPa @Temperature 316 °C | 6960 psi @Temperature 601 °F | ||
| 69.0 MPa @Temperature 260 °C | 10000 psi @Temperature 500 °F | ||
| 90.0 MPa @Temperature 204 °C | 13100 psi @Temperature 399 °F | ||
| 117 MPa @Temperature 149 °C | 17000 psi @Temperature 300 °F | ||
| 150 MPa @Temperature 24.0 °C | 21800 psi @Temperature 75.2 °F | ||
| Elongation at Break | 35 % @Temperature 24.0 °C | 35 % @Temperature 75.2 °F | |
| 55 % @Temperature 149 °C | 55 % @Temperature 300 °F | ||
| 65 % @Temperature 204 °C | 65 % @Temperature 399 °F | ||
| 80 % @Temperature 260 °C | 80 % @Temperature 500 °F | ||
| 100 % @Temperature 316 °C | 100 % @Temperature 601 °F | ||
| 130 % @Temperature 371 °C | 130 % @Temperature 700 °F | ||
| 35 % @Diameter 12.7 mm | 35 % @Diameter 0.500 in | AA; Typical | |
| Modulus of Elasticity | 71.0 GPa | 10300 ksi | AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus. |
| Poissons Ratio | 0.33 | 0.33 | Estimated from trends in similar Al alloys. |
| Fatigue Strength | 138 MPa @# of Cycles 5.00e+8 | 20000 psi @# of Cycles 5.00e+8 | completely reversed stress; RR Moore machine/specimen |
| Shear Modulus | 25.9 GPa | 3760 ksi | |
| Shear Strength | 179 MPa | 26000 psi | AA; Typical |
Thermal Properties:
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 22.5 µm/m-°C @Temperature -50.0 - 20.0 °C | 12.5 µin/in-°F @Temperature -58.0 - 68.0 °F | |
| 24.1 µm/m-°C @Temperature 20.0 - 100 °C | 13.4 µin/in-°F @Temperature 68.0 - 212 °F | AA; Typical; average over range | |
| 25.2 µm/m-°C @Temperature 20.0 - 200 °C | 14.0 µin/in-°F @Temperature 68.0 - 392 °F | ||
| 26.1 µm/m-°C @Temperature 20.0 - 300 °C | 14.5 µin/in-°F @Temperature 68.0 - 572 °F | ||
| Specific Heat Capacity | 0.904 J/g-°C | 0.216 BTU/lb-°F | |
| Thermal Conductivity | 117 W/m-K | 810 BTU-in/hr-ft²-°F | AA; Typical at 77°F |
| Melting Point | 568.3 - 638 °C | 1055 - 1180 °F | AA; Typical range based on typical composition for wrought products >= 1/4 in. thickness |
| Solidus | 568.3 °C | 1055 °F | AA; Typical |
| Liquidus | 638 °C | 1180 °F | AA; Typical |