The effect of temperature on corrosion of API 5CT L80 steels is studied in flow loop autoclave in CO_2 –containing environments. It has been shown, that corrosion rate of steels with 1 and 5% Cr decreases with increasing temperature and the highest rate of corrosion for these steel is observed at the test temperature of 100°C. Corrosion rate for steel with 13% Cr practically is not dependent on test temperature.
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