Low alloy steels contain a maximum of _______ chrome.
A. 5%With sour water corrosion, at a given pressure, the H睸 concentration in the sour water _________ as temperatures ________.
A. Increases, increasesMIC is often characterized by _______ within pits in carbon steel.
A. OxideTemper embrittlement can be identified by a(n) shift in the ductile-to-brittle transition temperature measured in a Charpy impact test.
A. UpwardCracks connecting hydrogen blisters are referred to as ________.
A. SOHICWhat is the chemical symbol for propane or propylene?
A. C?In general, the resistance of carbon steel and other alloys to High temperature corrosion is determined by the ________ content of the material.
A. MolybdenumAll piping and equipment exposed to HF acid at any concentration with hardness levels above ________ are subject to hydrogen stress cracking.
A. 200 BHNFor a specific material, HTHA is dependent on temperature, hydrogen partial pressure, time and _________.
A. StressWith CO?corrosion, increasing temperatures _________ corrosion rates up to the point where CO?is vaporized.
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