The main purpose and performance of heat exchanger tubes is
time2012/02/10
Stainless pipe corrosion causes
All metals in addition to the result of oxygen within a atmosphere, heat exchanger tubes the oxide film. Unfortunately, ordinary metal pipe within a formation of iron oxide within the oxidation continues, the rust will continue to expand, eventually forming holes. You should paint or oxidation-resistant metal (eg, zinc, nickel and chromium) plating to guarantee the carbon steel surface, but, as people know, this protection is simply a film. If a protective layer is damaged, these uncomplicated steel begun to rust.
Steel pipe will depend on the corrosion resistance of chromium, but because chromium is an element of steel, to ensure the source of protection is not the same.
Integrate the level of chromium reached 10.5%, annealed tube the atmospheric corrosion resistant steel increased significantly, but higher chromium content, although still improve corrosion resistance, but is not obvious. Because chromium is alloying of steel processing, the symptoms oxide is identical to as well as the change has really become pure chromium metal oxides formed appears to. This tight adhesion among the chromium-rich oxide surface protection to quit further oxidation. This thin oxide layer, wherein now you can see the top of the natural sheen of steel, the s / s offers a unique surface. Moreover, that the damaged surface, the exposed steel surface and therefore the atmospheric factor to self-repair, re-formation these "passive film", remain to play a protective role.
Therefore, all chrome steel possess a common characteristic, namely chromium content of 10.5% and.
And building construction applications, the metal pipe types will be only six. They contain 17 to 22% of chromium, a first-rate steel also contains nickel. Molybdenum can be furthered further boost atmospheric corrosion,seamless stainless steel pipe particularly corrosion possible chloride-containing atmosphere.
All metals in addition to the result of oxygen within a atmosphere, heat exchanger tubes the oxide film. Unfortunately, ordinary metal pipe within a formation of iron oxide within the oxidation continues, the rust will continue to expand, eventually forming holes. You should paint or oxidation-resistant metal (eg, zinc, nickel and chromium) plating to guarantee the carbon steel surface, but, as people know, this protection is simply a film. If a protective layer is damaged, these uncomplicated steel begun to rust.
Steel pipe will depend on the corrosion resistance of chromium, but because chromium is an element of steel, to ensure the source of protection is not the same.
Integrate the level of chromium reached 10.5%, annealed tube the atmospheric corrosion resistant steel increased significantly, but higher chromium content, although still improve corrosion resistance, but is not obvious. Because chromium is alloying of steel processing, the symptoms oxide is identical to as well as the change has really become pure chromium metal oxides formed appears to. This tight adhesion among the chromium-rich oxide surface protection to quit further oxidation. This thin oxide layer, wherein now you can see the top of the natural sheen of steel, the s / s offers a unique surface. Moreover, that the damaged surface, the exposed steel surface and therefore the atmospheric factor to self-repair, re-formation these "passive film", remain to play a protective role.
Therefore, all chrome steel possess a common characteristic, namely chromium content of 10.5% and.
And building construction applications, the metal pipe types will be only six. They contain 17 to 22% of chromium, a first-rate steel also contains nickel. Molybdenum can be furthered further boost atmospheric corrosion,seamless stainless steel pipe particularly corrosion possible chloride-containing atmosphere.