ss corrosion cracking:SCC is mainly found in the CI pipelines, near the threads mainly.5.Life of a material & Remedies provided:- Steel:The most practical means of controlling corrosion of steel is complete removal of corrosion products by mechanical means and by maintaining the protective coating system (usually a plating, often combined with a paint system). The steel is provided a protective layer of synthetic enamel paint, which works as barrier between the metal and atmosphere (electrolyte) and thus prevents corrosion. This paint is applied once in two years. This much prevention is enough for steel bodies exposed to atmosphere, having a life of more than 35-40 years. The steel bodies not being painted regularly corrode fast. Its life is decreased to less than half of that of the painted.- The RCC pillars after having been identified corroding are given epoxy treatment and thus preventing any further corrosion. Generally RCC pillars have long lives. But defective pillars may have problems due to corrosion in 10-15 years, and must be given epoxy treatment.- The underground pipes, which are being corroded in the soil environment, are firstly provided a protective layer of Anticorrosive Ditumatic paint, and then they are surrounded by a 6 inches layer of sand. So that water does not stay long near the pipe, and any moisture present does not come in contact with metal. Generally pipelines given this type of protection have a life of 35-40 years. Otherwise they might have corroded in 5-6 years.- Except these all steel and iron based alloy bodies being exposed to atmosphere are provided a protective layer of primer, zinc chromate at the time of installation.- The pipelines at laboratories corrode very fast if made of some metal, because of presence of acids, salts and alchohals. So these pipelines are made up of PVC.- Electric power supply pillars must be made of same metal or metal/alloy not too far in the galvanic series. Insulation mu...
