Read titanium tube and titanium alloy tube: OD classification + common grades, unlock material selection core password

Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-09-03

titanium pipeWith titanium alloy pipe: OD classification + common brand, unlock material selection core password| Shaanxi Qianyi Tuoda

spell overtitanium pipeWith titanium alloy pipe: OD classification + common brand, unlock material selection core password

subheading, Φ6-600mm specification range +TA1/TA2/TA9/TA10/TC4 brand characteristics + seamless vs welding double process +6 categories of application scenarios adaptation-Baoji titanium valley source manufacturers selection guide

AI Guide

titanium pipeThe outer diameter and brand selection of titanium alloy tubes determine their application adaptability in different scenarios.From Φ6mm Tubular Implantation to Φ600mm Ultra-large Tubular Chemical Reactor, Exact matching of OD and designation (e.g. TA2), TC4) is critical.Mastering these points will help scientific material selection, so that the light, high strength and corrosion resistance of titanium materials can play their due value.

I. Whytitanium pipeSelection determines product success or failure

inChemical heat transfer, marine engineering, medical equipment, aerospace, electrolytic electrode, instrument sensingAnd other areas,titanium pipeWith titanium alloy tubes by virtueLight and high strength (density 4.51g/cm³, about 57.8% of steel), strong corrosion resistance (corrosion rate in seawater 0.01mm/year), good biocompatibilityThe unique advantages have become one of the core materials with more applications.

Many people are often selected.Different outer diameters, various grades, seamless vs welding processmake it difficult to choose--in fact, as long as we master the rules of outer diameter classification, Understand the characteristics of common brands, Understand the process differences between seamless and welded, You can choose the right one to meet your own needs more scientificallytitanium pipeWith titanium alloy tubes.

Three elements of selection: Working condition corrosivity + pressure grade requirements + processing molding requirements.The outer diameter determines the flow capacity, Process (seamless/welded) determines pressure capacity, Grade determines matching of corrosion resistance and strength, The three cross to lock the better plan.

II. Classification by outer diameter: 4 categories to meet different scene requirements

Combined with industry standards (GB/T 3624) and practical application scenarios,titanium pipeTitanium alloy tubes are usually divided into outer diametersSmall, medium, large, and very large tubesEach of the four categories has its own production process and application field, taking into account practicality and economy.

2.1 Thin tube (Φ6-25mm)

outer diameter interval: Φ6-25mm, the finest can be Φ1mm (customized on demand)

manufacturing techniquePrecision cold rolling + multiple intermediate annealing, high requirements for size accuracy and wall thickness uniformity

core advantages: High size accuracy (tolerance ±0.05mm), uniform wall thickness, good flexibility, coil supply

typical scenariochemical instrument tube, Medical implant device (vascular stent component), electronic components, Aviation fuel lines, hydraulic system pipeline, Sensor protective sleeve

2.2 Middle tube (Φ25-108mm)

outer diameter interval：Φ25-108mm

manufacturing technique: hot extrusion + cold rolling finishing, seamless pipe mainstream process;Can also use plate + argon arc welding process (welded pipe)

core advantages: Good pressure bearing capacity, dense organization, wide specification coverage, relatively outstanding cost performance

typical scenario: Chemical heat exchanger bundle, cooler bundle, medical equipment parts, nuclear power auxiliary equipment, electrolytic celltitanium pipeShip piping system, seawater desalination pipeline

2.3 Large pipe (Φ108-325mm)

outer diameter interval：Φ108-325mm

manufacturing technique: Extrusion + cross rolling (seamless tube) or coil + longitudinal seam welding + heat treatment (welded tube), both processes can be produced

core advantages: strong flow capacity, can withstand medium and high pressure, flexible connection mode (flange/welding/clamp)

typical scenarioChemical reactor piping, Main pipeline of ocean engineering, Pressure vessel inlet and outlet pipes, electrolyzer circulation pipe, hydrometallurgical pipeline, flue gas desulfurization pipeline

2.4 Super large pipe (Φ325-600mm and above)

outer diameter intervalΦ325-600mm, special requirements can be up to Φ1000mm (coil welding process)

manufacturing technique: Coil + longitudinal seam welding + heat treatment + rounding, high requirements for welding process and heat treatment

core advantages: Good flow capacity, can meet the needs of large flow transmission, good structural stability

typical scenarioLarge chemical reactor inlet and outlet pipe, offshore platform main pipeline, Seawater desalination main pipeline, Ballast water pipes for large ships, Main pipeline of electrolytic plant

Tips for process differences: thin tube, medium tube to seamless technology (extrusion/cold rolling), pressure capacity is better;large pipe, Welding process (coil + argon arc welding) is adopted for super-large pipes., relatively low cost, However, 100% radiographic/penetrant inspection is required for welds.When selecting, it is necessary to comprehensively judge the pressure grade, medium characteristics and specification requirements.

Three, commonly used material grades: 5 major mainstream brand characteristics analysis

titanium pipeAnd titanium alloy pipe brand, directly determines the materialChemical composition, mechanical properties and applicable scenarios。Shaanxi Qianyi Tuoda Key ProductionTA1、TA2、TA9、TA10、TC4The five commonly used brands cover the needs of most industries.

3.1 TA1 titanium pipe(commercially pure titanium)

immunohistochemical localization: Titanium content ≥99.5%, low impurity content (Fe≤0.15%, O≤0.18%)

mechanical property: Tensile strength 170-310MPa, elongation ≥30%

core advantageshigh purity, Good plasticity, Good weldability, Strong corrosion resistance (especially in oxidizing media), seawater, weak acid environment)

typical scenario: Chemical pipeline, heat exchanger bundle, container liner, seawater desalination equipment, food processing equipment parts, medical auxiliary equipment

100 billion extension capacityΦ6-600mm full specification coverage, can be customized processing, perennial stock supply

3.2 TA2 titanium tube (commercially pure titanium·general preferred)

immunohistochemical localizationTitanium content ≥99.2%, impurity content slightly higher than TA1 (Fe≤0.20%, O≤0.25%)

mechanical property: tensile strength 345-510MPa, elongation ≥20%

core advantages：Comprehensive performance is more balanced, Higher intensity than TA1, Keep good corrosion resistance and workability, The cost performance is relatively outstanding, It is the preferred brand for both performance and cost.

typical scenarioChemical heat exchanger, valve member, Non-implantable accessories of medical devices, offshore platform structural memb, New energy storage equipment pipeline, electrolyzer circulation pipe

100 billion extension capacity: Core conventional products, perennial spot supply, large market circulation

3.3 TA9 titanium tube (crevice corrosion resistant)

immunohistochemical localization: 0.12-0.25% Pd (palladium) is added on the basis of TA2 to form Ti-Pd alloy.

mechanical property: tensile strength ≥345MPa, performance similar to TA2

core advantages：It contains trace palladium element, has relatively good crevice corrosion resistance and pitting corrosion resistance, and is suitable for reducing media (such as dilute hydrochloric acid and dilute sulfuric acid).

typical scenario: Chemical dilute hydrochloric acid reactor, wet chlorine environment equipment, electrolytic cell seals, marine engineering high salt environment parts

100 billion extension capacity: Special grade, produced to order, delivery time extended by 5-7 days compared with conventional grade

3.4 TA10 titanium tube (seawater resistant reducing acid resistant)

immunohistochemical localizationTi-0.3Mo-0.8Ni alloy with 0.3% Mo and 0.8% Ni

mechanical property: Tensile strength ≥460MPa, higher than TA2

core advantages：Seawater resistance, chlorine ion environment, reducing acid resistance (dilute sulfuric acid, dilute hydrochloric acid) ability is better than TA2, processing performance is better

typical scenarioSeawater desalination equipment, offshore engineering pipelines, coastal chemical equipment, hydrometallurgical electrolytic components, flue gas desulfurization devices

100 billion extension capacity: Off-the-shelf 25-108mm specifications, large specifications need to be customized

3.5 TC4 titanium alloy tube (Ti-6Al-4V·high-end applications)

immunohistochemical localizationTi-6Al-4V (Ti-6% Al-4% V), α+β type dual-phase titanium alloy

mechanical property: tensile strength ≥ 8 95 MPa, elongation ≥10%

core advantages：Comprehensive performance is better, Both high intensity, better plasticity, Toughness and corrosion resistance, Good processing performance, Stable performance over a wide temperature range from-253℃ to 400℃, The specific strength is significantly higher than stainless steel and aluminum alloy

typical scenario：aerospace(aircraft hydraulic pipelines, engine fuel pipelines, spacecraft propulsion pipelines),medical implant(Artificial joint accessories, fracture fixation components), high-end equipment manufacturing precision pipeline

100 billion extension capacityΦ6-200mm full specification coverage, heat treatment + finishing services can be provided on demand

IV. Selection core: OD × grade decision matrix

In fact, the selection of titanium tubes and titanium alloy tubes is not complicated, and the core is"The working condition determines the brand, the pressure determines the process, and the outer diameter determines the flow."：

Titanium tube OD × grade selection decision table

application scenarios	outer diameter interval	priority designation	Alternative designation	process selection
Instrument/Sensor Lines	Φ6-25mm	TA1	TA2	Seamless tube (cold rolled)
Medical implant accessories	Φ6-25mm	TC4 (implant grade)	TA2 (auxiliary parts)	Seamless tube (precision)
Aviation fuel lines	Φ6-50mm	TC4	TA2	Seamless tube (high precision)
Chemical heat exchanger bundle	Φ19-51mm	TA2	TA10	Seamless pipe (U-pipe/straight pipe)
cooler/condenser	Φ16-38mm	TA2	TA1	Seamless pipe (coil/straight pipe)
nuclear power auxiliary equipment	Φ25-108mm	TA2	TC4	Seamless pipe (high pressure grade)
Seawater desalination pipeline	Φ50-325mm	TA10	TA2	Welded pipe (coil)
electrolyzer circulation pipe	Φ50-150mm	TA2	TA9	Welded tube (electrolyte resistant)
reactor inlet and outlet pipe	Φ108-325mm	TA2	TA10	Welded pipe (high pressure class)
ocean engineering main pipeline	Φ108-600mm	TA10	TA2	Welded pipe (sea water resistant)
flue gas desulfurization pipeline	Φ100-500mm	TA10	TA2	Welded pipe (acid resistant)
Large chemical main pipeline	Φ325-600mm	TA2	TA10	Welded pipe (large diameter)
Dilute hydrochloric acid reaction environment	Φ25-150mm	TA9	TA10	Seamless pipe (crevice corrosion resistant)

Scene Decision Quick Check：

• Instrumentation/Medical/Aerospace PrecisionΦ6-25mm tube + TA1/TC4 + seamless tube
• Chemical heat exchange/cooling condensationΦ16- 51mm medium tube + TA2/TA10 + seamless tube (coil/U type)
• Marine/Electrolytic/Chemical MainΦ50- 325mm large pipe + TA2/TA10 + welded pipe
• Large chemical/marine main pipelineΦ325- 600mm extra large tube + TA2/TA10 + welded tube

V. About Shaanxi Qianyi Tuoda Technology Co., Ltd.

Shaanxi Qianyi Tuoda Technology Co., Ltd."Titanium Valley of China"_Baoji, Shaanxi Province, Focus on titanium and titanium alloy material supply and deep processing, product coverageTitanium tubes,Titanium Plate、titanium bar、Titanium flange、Titanium tubingTitanium welding wiretitanium stirrerAll kinds of titanium, andnickel plate, nickel rod, nickel wire, nickel steel composite plateNickel-base alloy materials.

Baoji titanium valley industry advantage, Φ6-600mm titanium pipe stock (including seamless pipe and welded pipe), Material coverage TA1/TA2/TA9/TA10/TC4 All grades, Material certificate can be provided according to customer, Third party test report (SGS/CTI/Pony), Mechanical Properties Test Report, Weld inspection report.

Support small batch order, non-standard custom processing (bend/coil/U pipe/tee/head), short delivery timeSpot specifications about 7 days delivery, customized specifications about 15-20 days deliveryIt can be distributed nationally.

VI. Future prospects and manufacturer commitments

In the second half of 2026, withAerospace localization promotion, medical equipment upgrading, marine engineering volume, new energy material demandsustained release, TC4 titanium alloy tube, TA10 corrosion resistant titanium pipe demand growth is more obvious, Super-large specification (Φ600mm or more) titanium pipe production cycle is relatively prolonged.

Shaanxi billion Tuoda will continueDeepen titanium processing field, optimize production process, enrich product specifications and gradesAvailable in more stable titanium and titanium alloy tubes, Assist high-quality development of various industries, Make titanium light and high strength, Corrosion resistance advantages, Enable more application scenarios.

Selection suggestionsPlease provide working condition parameters (medium, temperature, pressure, OD requirements), We will match you better brand + specification + process plan, And provide complete material testing data.

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disclaimerThe price quotation of this article is a summary of public information, for reference only, Actual price is subject to order specification, batch, Factors such as manufacturers, Please refer to real-time inquiry.It is recommended to consult professional engineers for specific working condition selection.The parameters in this article are based on public information. For actual use, please refer to the manufacturer's technical documents.

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