TA10 titanium molybdenum nickel alloy selection solution| 5 major applications +3 cases + domestic import price +5 steps to avoid pits

Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-07-25

Top connection of ion-exchange membrane electrolyzer in a 600 thousand ton/year caustic soda plant, Drawing label TA10 titanium molybdenum nickel alloy, Supplier quotes TA2 industrial pure titanium, It seems that procurement costs are lower.TA10 is Ti-0.3Mo-0.8Ni alloy, TA2 is commercially pure titanium., There is a clear difference between the two material attributes, TA2 under 80℃ wet chlorine condition, Crevice corrosion and perforation are easy to occur in a short timeTA10 can run stably for a long time under the same working conditions, and its service life is greatly extended.This paper systematically introduces the composition of TA10 Ti Mo Ni alloy, performance advantages, industry application, Case, Manufacturing process and procurement pit-avoidance points, For chemical equipment selection personnel reference.

Shaanxi Qianyi Tuoda Technology Co., Ltd. rooted in Baoji China Titanium Valley, Deep cultivation of titanium nickel non-standard materials for many years, It can be chloralkali., TA10 titanium-molybdenum-nickel sheet from customers in the hydrometallurgical industry, pipe, flange, Forging custom processing services.titanium pipeFull solution to selection

TA10 titanium molybdenum nickel alloy sheet has a variety of commonly used specifications, thickness range 0.5 to 4 mm thin plate, width 1000 mm or 1219 mm, length 2000 to 3000 mm, mostly used for equipment lining, thin-walled components;Thickness 4 to 10 mm plate, can be processed into reactor top cover, flange pieces;Thickness 10 to 30 mm plate, suitable for making reactor cylinder, tube plate;30 to 60 mm thick plate, Mostly used for thick-walled pressure equipment and composite plate base, The length of the plate can be adjusted according to requirements.

In titanium alloy material system, TA2 is general purpose industrial pure titanium, TA9 is titanium palladium alloy, Adapt to strong reducing acid condition, TA10 titanium molybdenum nickel alloy, Crevice corrosion resistance, High temperature, wet chlorine and weak reducing acid tolerance are outstanding.TA10 adds 0.3% molybdenum and 0.8% nickel to TA2 pure titanium base, and the purchase price of the material increases by 50%-70% compared with TA2, but the corrosion resistance is obviously improved.Top nozzle scenario in chlor-alkali ion membrane electrolyzer, Ordinary stainless steel materials are easy to appear cracks and perforations after half a year to one year, The service life of equipment increases significantly after TA10 is selectedPTA unit wet chlorine cooler, Crevice corrosion occurs in TA2 materials after 3 to 5 years of service, Service life extension of equipment after replacement of TA10 materialHydrometallurgical nickel-cobalt cell, dye chlorination kettle adapter, Wet chlorine preheater and other scenarios, TA2 material will show corrosion damage within a few years, TA10 can be used stably for many years.

According to the public data of Titanium Zirconium Branch of China Nonferrous Metals Industry Association, In 2024, the domestic market size of titanium molybdenum nickel alloy TA10/Gr.12 products is about 420 million yuan, Annual market growth rate of 16%, chlor-alkali, PTA's two major industries together account for 60%-65% of TA10's overall market demand.

TA10 titanium molybdenum nickel alloy matrix is titanium metal, Mo content 0.2%-0.4%, It is the core alloy component for improving crevice corrosion resistance., 0.6 to 0.9 percent of nickel element, Synergistic improvement of corrosion resistance of materials in weak reducing mediaIron, oxygen, carbon, nitrogen and hydrogen are all impurity elements, and the content needs to be controlled within the national standard limit.In terms of brand alignment, GB/T 3620.1-2016 naming TA10;American standard UNS number R53400, ASTM Grade12, plate, bar, pipe corresponding to B265, B348, B861 standards respectively;European standard is Ti Grade12, grade 3.7105;TP340M.Titanium PlateFull solution to selection

Combine several commonly used titanium materials, lateral contrast of nickel base materials, TA2 is Gr.2, commercially pure titanium., suitable oxidizing acid, seawater, zero clearance wet chlorine condition, as a price benchmarkTA10 titanium molybdenum nickel alloy, Main crevice corrosion resistance, High temperature resistance to wet chlorine and weak reducing acid, Price is 1.5-1.7 times TA2TA9 titanium palladium alloy, suitable for strong reducing acid environment, the price reaches 5 to 8 times that of TA2;TC4 titanium aluminum vanadium alloy, the advantage is high strength pressure, the price is 1.4-1.6 times that of TA2;Hastelloy C276 nickel-molybdenum-chromium alloy, suitable for strong reducing acid high temperature conditions, material cost is higher. need to pay attention to, TA10 is an upgrade to TA2., No replacement for TA9, TA9 titanium-palladium alloy is still preferred under strong reducing acid condition.

The corrosion rate of TA10 is much lower than that of TA2 under crevice corrosion condition containing chloride ions.Boiling 5% hydrochloric acid with crevices, TA2 corrosion rate is higher, Easy to punch quickly, TA10 corrosion rate can be controlled at a lower levelAt 80 ℃ wet chlorine with crevices, TA2 corrosion is obvious, TA10 corrosion rate is only one tenth to one twentieth of TA2;In saturated chlorine environment at 120℃, TA2 has high perforation risk, and TA10 has better corrosion control effect.In ordinary wet chlorine, seawater, seamless dilute acid condition, The corrosion behavior of TA10 and TA2 is similar., This type of scenario does not require additional cost to select TA10.

TA10 is widely used in five industries.Chlor-alkali industry, for ion membrane electrolyzer top connection, wet chlorine preheater, medium is 80℃ wet chlorine, chlorine ion brine, pipe specifications DN100 to DN500;PTA/PET industry, oxidation reactor, wet chlorine cooler, medium containing bromine ion acetic acid, temperature 120℃, pipe DN200 to DN800;field of hydrometallurgy, nickel-cobalt cell, heat exchanger, The medium is dilute nickel cobalt sulfate solution, containing chloride ion, Fittings DN300 to DN1000Dye intermediate industry, chloridizing reactor, Sulfonation kettle nozzle, Medium contains hydrochloric acid, chlorine, sulfuric acid mixed medium, DN150 to DN500electroplate PCB industry, chrome bath, acid mist tower adapter, contact chromic acid, Sulfuric acid and chloride ion medium, Fittings DN100 to DN400.

TA10 heat exchange tube is also a common component of chemical heat exchanger, Φ19 specification pipe, wall thickness 0.6-1.0 mm, length 6 to 12 meters, used for compact heat exchanger;Φ25 pipe, wall thickness 0.8-1.2 mm, length 6 to 12 meters, is the standard heat exchanger commonly used specifications;Φ32 pipe wall thickness 1.0-1.5 mm;Φ38 thick wall pipe, wall thickness 1.2-2.0 mm, suitable for high pressure and large flow conditions.TA10 pipe welding needs ERTi-12 matching welding wire, tungsten argon arc welding process, double-sided purity 99.99% argon protection, interlayer temperature control within 150℃, avoid hot crack problem.TC4 titanium alloy selection solution

Share 3 project application cases for technical reference only.case one, Top connecting pipe of ion-exchange membrane electrolyzer in 600 thousand tons caustic soda plant, TA10 Material DN500 Specifications, Medium 80℃ wet chlorine gas.The original TA2 material developed crevice corrosion and perforation after half a year of use, Long-term stable operation of equipment after replacement of TA10 product, Products are special-shaped thick-walled components, Full penetration structure, Custom cycle 25 to 35 days.Case 2: PTA unit wet chlorine cooler, TA10 + Q345R explosion clad plate reactor, medium 80 ℃ wet chlorine steam condensation, original TA2 nozzle failed for several years, stable operation after transformation, clad plate coating 4 mm, acceptance according to NB/T47002 standard.case III, Shell-and-tube heat exchanger for nickel cobalt electrodeposition cell in hydrometallurgy, Φ25×1.0 TA10 heat exchange tube, Medium 60 to 80℃ nickel cobalt sulfate solution containing chloride ions, TA2 heat exchanger will be perforated in 2 to 3 years, After TA10 modification, the equipment runs stably.

TA10 manufacturing process is more demanding than TA2, Molybdenum-nickel alloy improves welding hot crack susceptibility, Processing links need to be strictly controlled temperature, Argon protection throughout.The whole set of procedures are incoming inspection, verification of material certificate and re-inspection of molybdenum and nickel elements;CNC blanking, laser or waterjet cutting reserved machining allowance;3D modeling sheet metal unfolding, cold rolling, pressing molding;tooling alignment, spot welding;Full weld TIG welding, back argon protection, control interlayer temperature;Weld appearance inspection, penetrant inspection, key parts added ray inspection;pickling passivation treatment;Hydrostatic test, the test pressure is 1.5 times the design pressure;Vacuum or nitrogen-filled packing, wooden cases lined with PE film.The roughness of cutting surface shall meet the standard, and surface pollution caused by grinding wheel cutting shall not be allowed;High purity argon is selected for welding, interlayer temperature control is the key point, pickling passivation film is the key to ensure corrosion resistance.

Purchasing TA10 requires following a complete five-step selection process, Step 1: Confirm the composition of the medium, concentration, temperature, pressure, Chlorine ion content and whether there are cracks in the equipmentStep 2: Determine the type of corrosion, pitting, TA2 is selected for general corrosion and chlorine ion containing oxygen., TA10 is selected for the working condition containing chlorine ion with gap, TA9 was selected as strong reducing acid mediumthird, determining the material designation;the fourth step is to determine the specifications of plates, pipes and forgings;The fifth step is to clarify the inspection items, focusing on molybdenum and nickel XRF detection.

Purchase TA10 There are many places where it is easy to step on pits, FAQs include suppliers passing off TA2 as TA10, The composition of recycled remelted material is not up to standard, clad thickness reduction, Confusing TA10 and TA9 grades, Lack of NDT reports.The TA10 brand shall be specified in the procurement contract., molybdenum and nickel content interval, Third party molybdenum and nickel test report required, GB/T 3620.1 and corresponding ASTM standards are agreed upon., 100% penetration test after welding, Ensure material compliance.

Compared with Hastelloy C276, TA10 has lower density, better performance under crevice corrosion and wet chlorine conditions containing chloride ions, moderate processing difficulty and no metal ions precipitated.Hastelloy has stronger high temperature resistance and better adaptability to strong reducing acids, but the material density is higher and the processing difficulty is high.Selection idea: existence of crevice corrosion, weak reducing acid conditions, budget limited can choose TA10;Under strong reducing acid and high temperature conditions, Hastelloy C276 can be selected;TA9 can be evaluated with strong reducing acid and tight budget;No crevice corrosion risk, limited budget TA2.

perspective of industry development, TA10 products appear large, composite, Precision development trend, TA10 and carbon steel clad plate can effectively reduce equipment manufacturing costs.According to industry body forecasts, Domestic TA10 products market scale continues to grow, It is expected to reach 580 million yuan in 2026, It is expected to reach 1.25 billion yuan by 2030.

written in the end, TA10 is not a simple high-priced version of TA2, and is an adaptive material selection scheme aiming at crevice corrosion working conditions.Although procurement costs are higher, However, it can extend the service life of equipment from 1-3 years to 8-15 years, Comprehensive life cycle costs are more advantageous.If TA2 is used in wet chlorine gap condition, the equipment will be perforated and shut down for a short time, which will bring production loss.TA2, TA10 and TA9 constitute a complete titanium material selection system, which is suitable for different corrosion conditions.Shaanxi Qianyi Tuoda Technology Co., Ltd., Located in Baoji China Titanium Valley, TA10 titanium molybdenum nickel sheet available, pipe, flange, Non-standard equipment matching material selection and processing services, Welcome chlor-alkali, Hydrometallurgical industry customer consultation mode selection.

disclaimer, Case Study, performance data, Price range is only for technical selection reference, Not as a formal commercial offer commitment.The actual use of materials depends on the medium, temperature, welding technology, Impact of on-site operation and maintenance conditions, Shaanxi Qianyi Tuoda Technology Co., Ltd. reserves the right to interpret this article.