If there is no sulfur gases inside the corrosion rate of this time will be depends on the content of oxygen.But apart from oxygen, in the hot gas, the content of sulfur is also induced material, the reasons of corrosion occurring in the corrosion influence of sulfur he saw what was his way of being.Because in the air more than sulfur dioxide to sulfur corrosion, this is mainly because the gas is difficult to generate oxide film in the absence of oxygen.If they can make some nickel and key sulfur melting point is reduced, thus sulfur corrosion resistance will be reduced.And he resistant to sulfide nickel corrosion.Hope that through the introduction of today can make everyone better on the material temperature and the effect of heat resistant steel function has a certain understanding.