Marine ships are immersed in seawater for a long time. Due to the special environment, the requirements for the materials of ship plates and sheet metal parts are very high. It is required to have excellent corrosion resistance, high strength, excellent welding performance and good forming performance. 5083 aluminum plate and 5086 aluminum plate can be used in the field of marine ships and have good application effects.
5086 and 5083 marine grade aluminum plate in common
5083 aluminum sheet and 5086 aluminum sheet are both 5 series AL-Mg alloys, which are widely used as rust-proof aluminum. Both are used in applications where high corrosion resistance, good weldability and medium strength are required, such as ships, automobiles and aircraft plate weldable parts. As well as pressure vessels, refrigeration equipment, television towers, installation and detection equipment, transportation equipment, etc., which require strict fire protection.
The difference between 5083 aluminum sheet and 5086 aluminum sheet
The main difference between these two grades of aluminum sheet is the different chemical composition content and the difference in mechanical properties.
5083 aluminum plate chemical composition content: Si: ≤ 0.4 Cu: ≤ 0.1 Mg: 4.0 - 4.9 Zn: 0.25 Mn: 0.40 - 1.0 Ti: ≤ 0.15 Cr: 0.05 - 0.25 Fe: 0.4
5086 aluminum plate content of each chemical composition: Mg: 3.5 ~ 4.5 Zn: ≤ 0.25 Mn: 0.20 ~ 0.7 Ti: ≤ 0.15 Cr: 0.05 ~ 0.25 Fe: 0.000 ~ 0.500
5083 mechanical properties: tensile strength σb (MPa): 110-136 elongation δ10 (%): ≥ 20 annealing temperature: 415 ℃ yield strength σs (MPa) ≥ 110
5086 mechanical properties: tensile strength σb (MPa): ≥ 240 conditional yield strength σ0.2 (MPa): ≥ 95 elongation δ10 (%): ≥ 10 elongation δ5 (%): ≥ 12