【Chloride Ions and Carbon Steel in Non-Acidic Solutions】
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This post was last edited by Leyou_2014 on 2016-3-22 at 16:59 in [API 571], under 4.5.1 Chloride stress corrosion cracking; one of the identification factors is: I) Carbon steel, low-alloy steel, and 400 series SS are not sensitive to chloride SCC. So here’s the question: Q1: If it is water produced from oil wells (with a near-neutral pH of 6.8, free of H2S, and at a normal temperature of 25°C), and the chloride content is quite high, at around 70,000 mg/l, is carbon steel a suitable material for use in this case? Q2: The above refers only to stress corrosion cracking; I’m not sure whether chloride pitting (PREN) has any impact on carbon steel Q3: If carbon steel isn’t suitable, could you recommend a material commonly used for pipes in the oil and gas industry? Is it necessary to use duplex stainless steel or nickel-based alloys?
Corrosion is a definite issue; it’s possible to use PE or PO spun inside carbon steel pipes, and the cost is also low. Excellent corrosion resistance
Same question; I have the same doubt.
There is no problem with this water-based polyaniline