Aluminium 5083 is known for exceptional performance in extreme environments. 5083 is highly resistant to attack by both seawater and industrial chemical environments.Alloy 5083 also retains exceptional strength after welding. It has the highest strength of the non-heat treatable alloys but is not recommended for use in temperatures in excess of 65°C.
| Element | Composition % |
|---|---|
| Silicon (Si) | 0.40 Max |
| Iron (Fe) | 0.40 Max |
| Copper (Cu) | 0.10 Max |
| Manganese (Mn) | 0.40 - 1.0 |
| Magnesium (Mg) | 4.0 - 4.9 |
| Chromium (Cr) | 0.05 - 0.25 |
| Zinc (Zn) | 0.25 Max |
| Titanium (Ti) | 0.15 Max |
| Other (Each) | 0.05 Max |
| Others (Total) | 0.15 Max |
| Aluminium (Al) | Remainder |
| Thickness (mm) | Tensile Strength Rm (MPa) | Proof Stress Rp0,2 (MPa min) | Elongation A50 (% min) | Hardness HBW |
|---|---|---|---|---|
| over 1.5 – 3.0 | 275 – 350 | 125 | 13 | 75 |
| over 3.0 – 6.3 | 275 – 350 | 125 | 15 | 75 |
| over 6.3 – 12.5 | 270 – 345 | 115 | 16 | 75 |
| over 12.5 – 50.0 | 270 – 345 | 115 | 15 (A) | 75 |
| Mechanical properties are those specified by EN 485-2:2016 for alloy 5083 in H111 temper, for the plate thicknesses we stock. Hardness is given in the standard for information only and is not a guaranteed minimum. Above 12,5 mm the standard specifies elongation as A rather than A50. Certificates to EN 10204-3.1 are available on request. | ||||
| Thickness (mm) | Tensile Strength Rm (MPa) | Proof Stress Rp0,2 (MPa min) | Elongation A50 (% min) | Hardness HBW |
|---|---|---|---|---|
| over 3.0 – 6.0 | 305 – 385 | 215 | 10 | 89 |
| over 6.0 – 12.5 | 305 – 385 | 215 | 12 | 89 |
| over 12.5 – 40.0 | 305 – 385 | 215 | 10 (A) | 89 |
| Mechanical properties are those specified by EN 485-2:2016 for alloy 5083 in H116 temper, for the plate thicknesses we stock. Hardness is given in the standard for information only and is not a guaranteed minimum. Above 12,5 mm the standard specifies elongation as A rather than A50. Certificates to EN 10204-3.1 are available on request. | ||||
Aluminium Alloy 5083 is capable of being bent cold through an angle of 90 degrees around a pin having a radius equal to N times the thickness (t) of the sheet without cracking.
One of the key factors to consider when working with marine grade Aluminium is the minimum bend radius. This refers to the smallest radius that the metal can be bent without cracking or damaging the plates. When the metal is bent beyond its minimum bend radius, the stress on the material becomes too great and it can begin to crack or break. To prevent this and maintain the structural integrity of marine grade Aluminium, it is important to adhere to the recommended minimum bend radii for the specific alloy, temper and thickness of aluminum being used.
| Property | Value |
|---|---|
| Density | 2.65 g/cm3 |
| Melting Point | 570°C |
| Thermal Expansion | 25.0 ×10−6 /K |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 121 W/m.K |
| Electrical Resistivity | 0.058 ×10−6Ω.m |
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