Corrosivity of cold-drawn seamless steel tubes has become a serious problem. Many manufacturers are also increasing the cost of corrosion. The direct economic loss caused by light corrosion every year reaches hundreds of millions of yuan, which is a huge expenditure. Therefore, corrosiveness should be dealt with in time to recover economic losses. Why are cold-drawn seamless steel tubes corroded? These factors are directly related to corrosion. Specifically, let's take a look at the relevant introduction directly. 1、首先是外界条件的影响。主要是先看管道周围的介质特性、温度，以及管道周围所处的介质是不是具有腐蚀性。因为介质腐蚀性的高低与土壤所含的各项微生物有着密切的关系。并且如果是长输管道的话，土壤环境性质更加复杂。除此之外，管道所处环境的温度也会影响冷拔无缝钢管的腐蚀，如果温度较高，腐蚀的速度也会加快，而温度低则腐蚀速度减慢。
1. The first is the influence of external conditions. Mainly depends on the characteristics of the medium around the pipeline, temperature, and whether the medium around the pipeline is corrosive. Because the corrosiveness of the medium is closely related to the microorganisms in the soil. And if it is a long-distance pipeline, the soil environment is more complex. In addition, the temperature of pipeline environment will also affect the corrosion of cold-drawn seamless steel pipe. If the temperature is higher, the corrosion speed will be accelerated, while the corrosion speed will be slowed down when the temperature is low.
Cold-drawn seamless steel tubes. jpg
2. Corrosion protection is invalid. When pipeline is erected, it is necessary to do a good job of anti-corrosion or use anti-corrosion cold-drawn seamless steel pipe directly. The reason why pipeline is corroded is that the anti-corrosion layer of pipeline is damaged. Once the anticorrosive coating and pipeline surface are separated, it will naturally cause anticorrosive failure.
Above is the main reason for the corrosiveness of cold-drawn seamless steel tubes. We can avoid these reasons and find solutions to prevent corrosiveness, so that we can get better results!
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