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Product Description
Alloy 5083 is a non-heat-treatable 4½% magnesium, 0.15% chromium, 0.7% manganese alloy commonly available in flat rolled plate from a range of producing mills. Like all the 5000-series high magnesium alloys 5083 achieves a high strength by cold working, enabling a series of “H” tempers; 5083 is the highest strength of any of these alloys. Alloy 5083 is best known as a plate for ship building.
Corrosion Resistance:
Excellent in a wide range of atmospheric environments, in food processing and architectural applications. The principal application for 5083 is marine environments.
The magnesium content is more than 3½% Mg, so this alloy can be susceptible to stress corrosion cracking, which limits its application temperature to below 65°C and also limits the amount of cold work to ¼ Hard.
Applications:
LNG ship construction
Pressure vessels
Storage tanks
Welded structures (high strength)
Armor plate
Drilling rigs
Chemical Composition:
Chromium: |
0.05%-0.25% |
Copper: |
0.1% (Max) |
Magnesium: |
4.0%-4.9% |
Manganese: |
0.4%-1.0% |
Silicon: |
0.4% (Max) |
Zinc: |
0.25% (Max) |
Aluminum: |
92.4%-95.6% |
Temper Types:
The most common tempers for 5083 aluminium are:
O - Soft
H111 - Some work hardening imparted by shaping processes but less than required for H11 temper
H32 - Work hardened by rolling then stabilised by low-temperature heat treatment to quarter hard
http://www.dhm-aluminum.com/