What are the main factors affecting the corrosion of titanium heat exchanger tube sheets?

(1) Medium composition and concentration: The influence of concentration is different. For example, in hydrochloric acid, the greater the concentration, the more serious the corrosion. Carbon steel and stainless steel are severely corroded in sulfuric acid with a concentration of about 50%, but when the concentration increases to more than 60%, the corrosion drops sharply;
(2) Impurities: Harmful impurities include chloride ions, sulfur ions, cyanide ions, ammonia ions, etc. These impurities can cause serious corrosion in some cases
(3) Temperature: Corrosion is a chemical reaction. For every 10°C increase in temperature, the corrosion rate increases by about 1 to 3 times, but there are exceptions;
(4) ph value: Generally, the smaller the ph value, the greater the corrosion of the metal;
(5) Flow rate: In most cases, the greater the flow rate of the titanium heat exchanger, the greater the corrosion.