subject: Corrosion Resistance Of Stainless Steel Pipe [print this page] Corrosion resistance of stainless steel pipe General Sui chromium additions and progress, based on the grounds of their is enough of the steel in chrome feet when the inside of steel in the formation of a very dilute fertilizer-causing oxide film, it can avoid further oxidation or corrosion. Oxidation of the ring.
Environment can weaken this film, while the recovery of the environment is bound to damage this membrane, made of steel.
Next, I analyze the following stainless steel capillary pipe in all environments, corrosion resistance function:
1. Stingy corrosion
Corrosion-resistant stainless steel pipe stingy basis is followed in the atmosphere of exposed chloride volume changes. Thus, close to the land or the remaining chloride purification flow on corrosion of stainless steel capillary pipe for the main non-polar, interior doors. Water quality must be as long as the steel surface light degree of chloride is only done when the primary use.
Rural environment 1Cr13, 1 Cr 17 and austenitic stainless steel pipe tube can conform to a variety of useful, its not obvious in view of the changes. Thus, in the village workers can show the use of stainless steel capillary pipe according to price, market supply conditions, power teaching performance, system made by farmers to select the performance and the outlook.
Industrial environment without chlorine purification industry environment, 1Cr17 and austenitic stainless steel pipe to make temporary, basis insist rust can form in the appearance of pollution film, but the film will eliminate pollution before, by keeping off this are light in view. In the absence of chloride agricultural environment, will form a stainless steel capillary pipe corrosion.
Terrestrial environment 1Cr13 and 1 Cr 17 steel pipe in less time rust will form a film of fat, but not made obvious in the size of the changes. Austenitic stainless steel pipes, such as 1 Cr 17Ni7, 1 Cr 18Ni9 and 0 Cr 18Ni9, as revealed in the sea-land environment, Can present a number of corrosion. Corrosion is usually shallow, and can be easily eliminated days. 0 Cr 17 Ni 12M 02 stainless steel pipe with molybdenum in the terrestrial environment is essentially corrosion resistance.
In addition to the premise of the atmosphere, by any other effects within the two atmospheric corrosion resistant stainless steel capillary pipe elements, then the surface morphology and the manufacturing process. Rough cut farm-level impact of stainless steel in a chloride environment, the corrosion resistance. Bright table (hair side) of the corrosion is very slow, then the industry generally rough surface on the corrosion sensitivity greater reason. Surface rough-level impact of dirt and corrosion by the elimination. Since finishing the surface under the dirt and corrosion properties eliminate very easily, but wipe out its own light, under which is very difficult. On the matt surface, and if you adhere to the apparent condition of the others have more often liquidation.
2. Seawater
Sea water for it does not have any set Meaning of acid, saline or micro light, originated in the rivers, lakes, ponds or wells outside the fire.
Mongolia fresh water corrosive pH, oxygen exposed biased nature and scale of defeat. Solution scale (soft) water, the corrosive important by the failure in the form of metal in scale in the number and kinds of type to the resolution. The composition of this scale is a mild degree of which the role of mineral materials. Is the solution scale (hard) water, this water than soft water corrosion of ordinary weak. Can successfully progress through narrow pH value or exposed to oxygen decreased the quality of its corrosion.
Tomorrow 1Cr13 stainless steel pipe was stronger than the fire-resistant carbon steel corrosion dirty and no good in the concentrated application of the characteristics of the water.
1Cr13 in the sea surface erosion can be slow for foreign degrees. Punctuality loss, however, a complete way to use the anode to prevent corrosion attack. 1Cr17 and austenitic stainless seamless pipe is no room warm (warmth environment) is simply not to complete homogeneous corrosion resistance to fresh water.
