Marine grade aluminum needs to undergo hot and cold processing and welding during processing. Ships will be subject to the impact of sea waves and corrosion by sea water, sea mud, and ocean atmosphere during use.
Therefore, marine grade aluminum sheets are required to have high comprehensive properties, including good plasticity and weldability, higher stiffness, strength, good plasticity and impact toughness, and excellent corrosion resistance.
Plasticity refers to producing plastic deformation without damage under load. The indicator of plasticity is elongation. The marine aluminum sheets with good plasticity can avoid sudden fracture due to certain plastic deformation.
Impact toughness refers to the ability of a metal to resist the action of an impact load without being damaged. The hull structure is subject to impact loads from sea wave. Due to the high concentration of impact load and short action time, the stress distribution and deformation of the metal are very uneven when subjected to impact, so the impact load is more destructive than the static load.
Strength refers to the ability of a material to resist plastic deformation and fracture under external load. According to the nature of the external force, there are mainly yield strength, tensile strength, compressive strength, flexural strength, etc.
The commonly used ones are yield strength and tensile strength. These two strength indicators can be measured through tensile tests. For ships, they will be subjected to different forces such as gravity, buoyancy, water pressure, etc. Therefore, the hull material needs to be strong enough.
Weldability refers to the performance of a welded joint with sufficient strength, plasticity and toughness without cracks formed after the material is welded under certain process conditions and structural conditions.
The main alloys of marine grade aluminum is 5xxx aluminum alloy. Welcome to leave message below to tell use your requirements and inquire marine grade aluminum price.
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Aluminum Alloy Expert 