What about TA2 and TA10?3 dimensions clearly stated

TA2 and TA10 are the most widely used titanium grades in chemical equipment, 30%-50% difference in purchase price, The difference in service life of equipment can reach more than 50%.Once the wrong brand is selected, either the procurement cost is too high, resulting in waste of funds;Either the equipment corrosion accelerates and the service life is greatly reduced.Based on Baoji China Titanium Valley many years of experience in chemical special materials project, From chemical composition, corrosion resisting property, Cost Life Three Core Dimensions, Clarify TA2 for equipment procurement and technicians, Selection logic for TA10.

Dimension 1: Chemical composition, the core source that distinguishes the two TA2 and TA10 are both national standard titanium materials, but there are obvious differences in alloy systems.TA2 corresponds to American standard Gr2, Industrial pure titanium, Titanium content ≥99.6%, No palladium added, molybdenum, Nickel and other alloying elements.TA10 corresponds to American standard Gr12, Titanium matrix content ≥99.0%, By adding molybdenum, nickel element optimize material performance, Improve passivation ability in reducing media. Core role of alloying elements, when dilute hydrochloric acid, Low concentrations of sulfuric acid such as reducing media environment, Alloy elements can promote the formation and self-repair of passivation film on titanium surface, This allows TA10 to be used for long periods of time under corrosive conditions where TA2 is difficult to operate stably.

Dimension 2: Corrosion resistance, directly determines the service life of equipment The corrosion resistance of the two brands is significantly different in various chemical media.Under dilute sulfuric acid conditions with a concentration of less than 10%, TA2 can be used stably for 5-8 years, and TA10 can be used for 10-15 years.Dilute hydrochloric acid condition with concentration less than 5%, TA2 is not recommended for use, TA10 can run stably for 5-10 yearsIn phosphoric acid environment with concentration less than 30%, both brands can be used, and TA10 has better corrosion resistance. saline, Chlorine-containing systems such as wet chlorine, TA2 can be used normally, TA10 is more resistant to crevice corrosion, Better durabilityTA2 and TA10 exhibited excellent corrosion resistance under acetic acid, citric acid and other organic acid conditions.Under hydrofluoric acid medium, both grades cannot withstand, and other special alloys need to be selected. Core rules of selection: oxidizing, neutral medium environment, TA2 fully meet the use;TA10 is preferred for reductive and weak reductive corrosion conditions;Strong reducing medium, both brands are not applicable.

Dimension 3: Cost and life, accounting for full-cycle comprehensive economics Taking the project of chemical reaction kettle purchasing 1 ton titanium material as an example, the investment and income of the two schemes are compared.The procurement cost range of TA2 scheme is 180,000 to 250,000 yuan, the design life of equipment is 8 years, and the converted annual service cost is 22,500 to 31,000 yuan.The purchase cost of TA10 is 250,000 to 350,000 yuan, the service life can reach 12 years, and the average annual cost is only 21,000 to 29,000 yuan. From a single purchase, TA2 purchase price 30%-50% lower, But spreading the cost over the life cycle, TA10 is more cost-effective for long-term use.This is also an important idea for the selection of chemical titanium materials, Reasonable investment in the early stage, Can reduce late equipment replacement, Comprehensive loss caused by shutdown maintenance.

Material decisions can be made in a three-step process: The first step is to determine the type of media.Oxidative, neutral medium, TA2 can be selected;Reducing medium, TA10 is preferred. Step 2: Determine the concentration of the medium.Dilute sulfuric acid concentration ≤5%, TA2 can meet;Dilute sulfuric acid concentration is in the range of 5%-10%, TA10 is recommended. The third step is to determine the operating temperature.Temperature ≤100℃, two brands can be selected;Temperature range 100-150℃, TA10 stability is better.

Choose TA2 for oxidation, save money enough; TA10 for reducibility, 5 years for more; Not sure about TA10, rather insurance.

How to choose titanium?3-Step Decision Making Application of Titanium Material in Heat Exchanger Chemical Plant TA2titanium pipe 5 years of secrets.