Comparison of Corrosion of Iron Plate, Stainless Steel Plate and Aluminum Plate in the Ocean

Today we are going to talked about the topic “comparison of corrosion of iron plate, stainless steel plate and aluminum plate in the ocean”. And Haomei Aluminum is an marine aluminum plate manufacturer and supplier in China, which provides marine aluminum plates, 5 series aluminum plate and 6 series aluminum sheet for sale. Now let’s get started!

1. Corrosion of iron plates in marine environment

The type of corrosion of cast iron in seawater is graphite corrosion. That is, the iron on the surface of cast iron corrodes, leaving corroded graphite and corrosion products, which maintain the original shape and size after corrosion, but lose weight and strength. Remove graphite and corrosion products, showing uneven corrosion. The corrosion rate of ordinary cast iron in seawater is close to that of carbon steel, and the corrosion rate of low-alloy cast iron in seawater is close to that of ordinary cast iron, and alloys with a small amount of Ni, Cr, Mo, Cu, Sn, Sb, Re and other elements can reduce the corrosion rate. Corrosion rates in cast iron marine atmospheres. High-nickel cast iron is less susceptible to marine corrosion.

2. Corrosion of stainless steel plate in marine environment

Stainless steels have low corrosion rates in seawater, they are damaged by pitting and crevice corrosion, and most of their surfaces are not corroded.

3. Corrosion of marine aluminum plate in seawater

The corrosion of aluminum alloys in marine environment is characterized by pitting corrosion, crevice corrosion and intergranular corrosion. The main ion components in seawater are: chloride ion, sodium ion, sulfate ion, magnesium ion, calcium ion, potassium ion, bicarbonate ion, etc. These ions not only corrode various metal equipment in the production process, but also affect the workshop. The non-metallic materials in it also form corrosion. However, the 5 series aluminum plate and 6 series aluminum sheet can effectively prevent the corrosion of aluminum because of its high content of magnesium and silicon. Therefore, if you want to buy a plate for marine use, please choose marine aluminum plate!

All the above-mentioned is the basic introduction of the comparison of corrosion of iron plate, stainless steel plate and aluminum plate in the ocean. Thank you for your patience in reading! As for the more detailed information, you can refer to “marine aluminum plate“, or you can directly consult us about everything on aluminum products via email. As aluminum profile manufacturer and supplier, Haomei Aluminum Co., Ltd. provides marine aluminum plates for sale, welcome to inquire and order. Should you be interested in buying aluminum product, please contact us