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The Performance Of The Pipeline Within the Corrosive Environment Changes

Petroleum chemical industry, shipbuilding, coating steel pipe media resembling offshore oil platforms, there are various corrosive, actually, the dangers of metal corrosion is very common, but in addition may be very s…

Petroleum chemical industry, shipbuilding, coating steel pipe media comparable to offshore oil platforms, there are lots of corrosive, in reality, the dangers of metal corrosion is quite common, but also is very serious, the corrosion cause direct or indirect losses. For example, between the metal corrosion and stress corrosion oil refinery company in bangladesh quotes and fatigue corrosion are inclined to major catastrophic accident, and the metal corrosion may cause loads of metal consumption, waste a lot of resources. Mainly has the next cause corrosion medium.

1. Chloride and chloride corrosion of carbon steel is basically uniform corrosion, and accompanied by hydrogen embrittlement, corrosion is pitting corrosion of stainless oil refinery company in bangladesh quotes steel intergranular corrosion or. Prevention measures can choose appropriate materials, comparable to using carbon steel pipe and stainless steel composite pipe.

2. As many as 250 sulfide sulfur in crude oil, on the metal corrosion of hydrogen sulfide (H2S), mercaptan (R – SH), sulfide (R – S – R), etc. The high H2S content within the liquefied oil refinery company in bangladesh quotes petroleum gas in our country, causing cracks in container, some production of the 87 days that happen through cracks and later by the magnetic particle inspection, inner surface circumferential weld crack, 417 ball in vitro surface crack, so the high content of H2S stress corrosion brought on by deserve attention. Japan welding society and high pressure gas safety association rules: H2S content in the liquefied oil must be controlled under 100 x 10-6, but our country liquefied petroleum gas H2S content in a mean of 2392 x 10-6, Japan more than 20 times higher.