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Besides the coating, we could also improve the material’s anti-corrosion property by using a marine grade steel, such as ASTM A690.
The main difference between A690 and traditional steel is that A690 requires at least 0.50% copper, which has increased the anti-corrosion property of the material.
The A690 material functions very well at the Splash Zones in marine environment. Sometimes using A690 is a more economic way for anti-corrosion than coating.
Here is the chemical composition requirement and mechanical property of ASTM A690:
Shunli had already developed this material together with BaoSteel, and applied it to numerous marine projects around the world.
