According to the results of electrochemical hydrogen penetration test, the bigger the carbon web content and the quantity portion of carbides in sample bar, the smaller the diffusion coefficient of hydrogen and the greater the solubility. As the carbon material increases, the resistance to hydrogen brittleness reduces. The slow stress price tensile test verified that the higher the carbon material, the lower the resistance to tension corrosion splitting. As the hydrogen reduction reaction and also the amount of hydrogen injected into the example increase, the anodic dissolution response will certainly occur, speeding up the formation of slip area. With the rise of carbon content, carbides will certainly be sped up out in the steel. Under the activity of electrochemical deterioration response, the opportunity of hydrogen embrittlement will boost. In order to make sure excellent rust resistance and also hydrogen brittleness resistance of the steel rod, regulating the precipitation as well as quantity fraction of carbides is an efficient method.