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4 Types of Steel Corrosion and How to Avoid These Problems

Steel is one of the strongest materials, essential in keeping constructions solid and secure. However, it can be a very difficult thing to build with. Though it is versatile, it is also tough, perfect for being the foundation of modern infrastructure and building technology.

However, tough steel is not invincible—it has an enemy in corrosion, but only if you don’t know how to take care of them properly. Aside from ruining the sleek look of steel, corrosion might also harm structural integrity.

If you work with a structural steel and fabrication specialist, you can be assured that you have experts that handle steel surface treatment for you. Not only will it make steel more attractive, but it will also get the protection it needs against extreme weather conditions and corrosion.

However, there are things you have to consider as well. Here are the different types of steel corrosion and what you can do about them.

1. Crevice Corrosion

Crevice corrosion is a localised problem. It usually shows up in a stagnant microenvironment with acidic conditions and depletes the oxygen. To avoid a situation like this that will lead to corrosion, you should ensure that the construction has no tight gaps.

2. Galvanic Corrosion

Galvanic corrosion shows up when steel comes into contact with another metal. If you want to avoid dissimilar metal corrosion, you should ensure that different metals don’t get close to each other. However, if you can’t escape it, you should try processes like anodising or galvanising, which are coatings that prevent electric conduction between the metals.

3. Pitting Corrosion

Pitting corrosion happens when localised steel areas lose the layer that protects them. The area becomes anodic, and the other metal becomes cathodic, which results in a minor galvanic reaction. When this happens, you reduce the structural integrity of a steel section and bring in further damage.

By regularly applying protective coatings and cathodic protection, you can avoid pitting corrosion. It’s essential to do the preventive measures for this type of corrosion, as they can be hard to spot and are relatively small in size, but damage can be a massive risk if you spot it too late.

4. Uniform Attack Corrosion

Also known as general corrosion, chemical or electrochemical reactions may cause uniform attack corrosion. When these occur, the surface of the steel deteriorates, leading to corrosion of the entire area.

To prevent uniform attack corrosion, you should establish a barrier between the steel and possible harmful agents. This barrier must have zinc phosphate primers, oil sealants, plastic coatings, and paint for a cohesive approach in protection.

Conclusion

Keep steel in its best state by knowing how to protect it against corrosion. By learning how to avoid problems, you will protect your property and ensure it remains safe in the long run.

If you are looking for a structural steel specialist in Queensland, Phoenix Reinforcing is the right company for you. Our experts have combined industry knowledge of over 40 years. So whether you are a DIY customer or a construction business, you can get high-quality workmanship every single time. Contact us today to learn more.

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