What is corroding inside this carbon steel pipe?
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This post was last written by hy_0619 edited on 2018-5-8 10:19 Dear masters, what form of corrosion is there in this carbon steel pipe? Inside the pipe is domestic hot water. Yesterday it was discovered that the pipe section was leaking water. After cutting, it was found that there were uneven yellow and black bulges on the inner surface of the pipe section. As shown in the picture. Please help all sea friends. Thanks
This post was last edited by Baoji Chaosheng Titanium Industry on 2018-5-11 16:35 Drinking water pipes will also suffer from such corrosion after being used for a long time.
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The source of hot water may need to be evaluated. The water quality is not very good, causing sedimentation corrosion, or the hot water flow rate is insufficient.
Corrosion under scale. In what age, carbon steel pipes are still used for domestic hot water!
The same is true inside the steel pipes that carry tap water. It depends on the quality of your water. There are calcium, magnesium and iron scales. The composition is definitely not simple.
It should be caused by corrosion under the scale.