Carbon steel and stainless steel and use the difference between the utility - Yi Hang pipeline

 Carbon steel is in addition to C, but without the addition of other alloying elements artificial steel, of course C is controlled to a certain extent, the hardness is greater than pure iron. Generally do not have any ability to corrosion. Galvanized steel is steel surface coated with a layer of zinc, such as home with the drum, to resist corrosion, the corrosion mechanism in the event of zinc corrosion electrochemical corrosion occurs first in order to protect the surface of the iron base. Cr-containing stainless steel means greater than or equal to 13%, in the atmosphere of stainless steel. Many different types of stainless steel, there is ferritic stainless steel, austenitic stainless steel, martensitic stainless steel. Ability of different stainless steel to resist corrosion of different media for different corrosion resistance is also different. Three can be distinguished, carbon steel is not to say it? Look on the look out, the surface of zinc galvanized steel, not iron, the surface is white, stainless steel is white. In the magnetic areas are different. Carbon steel and galvanized steel no difference, generally stainless steel having no magnetism, but not absolute, non-magnetic austenite, but the ferrite has, but also relatively weak.