Read titanium wire and titanium alloy wire: diameter classification + common grades, unlock material selection core password

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

Subtitle: Φ0.1-6mm specification range + TA1/TA2/TA9/ERTi-2/ERTi-5 brand characteristics + welding wire/medical/electrode/fastener 4 categories of application scenarios--Baoji titanium valley source manufacturer selection guide

AI Guide

The diameter and brand selection of titanium wire and titanium alloy wire determine its application adaptability in different scenarios.From Φ 0.1mm ultra-thin wire medical suture to Φ 6mm thick wire electrolytic defogging, accurate matching diameter and brand (such as TA1, TA2, ERTi-2, ERTi-5) is the key.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.Among them, the use of welding wire accounts for about 80%, which is the main application field of titanium wire.

First, why titanium wire selection determines product success or failure

inWelding filler material (welding wire, 80%), Medical implant device, Electrolytic demisting/electroflocculation, fastener manufacturing, 3D printing raw materials, memory alloy memberSuch fields as titanium wire and titanium alloy wireLight 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 diameters, various grades, welding wire grade matchingThe combination of diameters makes it difficult to choose--in fact, as long as you master the rules of diameter classification, Understand the characteristics of common brands, Understand the correspondence between welding wire and base metal, Titanium wire and titanium alloy wire can be scientifically selected to meet their own needs.

Three elements of selectionApplication scenarios (welding/medical/electrode/fastener)+ diameter accuracy requirements + parent material grade matching (welding wire is especially critical).Diameter determines the application scenario, brand determines corrosion resistance and biocompatibility performance, and the intersection of the two can lock the better solution.

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

Combined with industry standards (GB/T 3623) and practical application scenarios, titanium wire and titanium alloy wire are usually divided into diameterSuperfilament, filament, medium filament, coarse filamentEach of the four categories has its own production process and application field, taking into account practicality and economy.

2.1 Ultrafine wire (Φ0.1-0.5mm)

diameter interval: Φ0.1-0.5mm, the finest can be Φ0.05mm (customized on demand)

manufacturing techniqueMulti-pass precision drawing + multiple intermediate annealing (vacuum or argon protection), High requirements for mold accuracy and surface quality

core advantages: High size accuracy (tolerance ±0.005mm), smooth surface (Ra≤0.4μm), good flexibility

typical scenariomedical suture, Medical implant device (vascular stent braiding, nerve repair filament), precision electronic components, 3D printing raw materials (electron beam melting), Precision filter

2.2 Filament (Φ0.5-1mm)

diameter interval：Φ0.5-1mm

manufacturing technique: Precision drawing + intermediate annealing, surface cleaning treatment can be carried out as required

core advantages: High precision, cutting, weaving, winding processing according to demand

typical scenarioMedical device accessories, Orthopedic traction needle, 3D Printing Filament (FDM), Chemical spring, electroplate anode wire, Spectacle frame wire, jewelry processing

2.3 Medium filament (Φ1-3mm)

diameter interval：Φ1-3mm

manufacturing technique: Drawing process + vacuum annealing, with surface pickling passivation for some requirements

core advantages: Strength and precision are balanced, coil supply is available, and application scenarios are relatively wide.

typical scenario：Welding wire mainstream specification(Φ1.0/1.2/1.6/2.0/2.4/3.0mm), fastener blank, chemical spring, electrode wire, battery ear wire, aviation standard parts

2.4 Thick filament (Φ3-6mm)

diameter interval：Φ3-6mm

manufacturing techniqueHot rolling + drawing or direct hot rolling, higher requirements for surface oxide layer control

core advantages: high strength, good load-bearing capacity, can be used as structural parts or large size welding wire

typical scenario：large size weld wirethick plate welding), Electrocoagulation electrode, electrolytic defog filament, Chemical equipment support wire, ship lashing wire

Tips for process differences: Ultra-fine wire adopts multi-pass precision drawing process, die loss is high, single batch yield is low;Medium wire and thick wire adopt drawing + hot rolling combination process, and the production capacity is relatively large.When selecting models, it is necessary to comprehensively judge the accuracy requirements and output requirements.

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

Titanium wire and titanium alloy wire brand, directly determines the materialChemical composition, mechanical properties and applicable scenarios。Shaanxi Qianyi Tuoda Key ProductionTA1、TA2、TA9、ERTi-2、ERTi-5Five commonly used grades cover most industry needs (welding wire adopts AWS A5.16 standard grade system).

3.1 TA1 titanium wire (industrially 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 scenarioChemical pipeline welding (thin wall), medical suture, Medical auxiliary devices, battery tab, 3D printing raw materials (electron beam melting)

100 billion extension capacityΦ0.1-6mm full specification coverage, can be customized processing, perennial stock supply

3.2 TA2 titanium wire (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 scenario: Chemical equipment welding (thick wall), fastener blanks, electrode wire, electrocoagulation electrode, chemical spring, jewelry and crafts

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

3.3 TA9 titanium wire (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 environment welding, 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 ERTi-2 titanium welding wire (AWS A5.16 standard·pure titanium welding wire)

immunohistochemical localization: Corresponding to TA2 grade, titanium content ≥99.2%, in line with AWS A5.16 ERTi-2 standard

mechanical property: Tensile strength of weld seam ≥345MPa, elongation ≥20%

core advantages：AWS Standard Wire Grade, The compatibility with TA1/TA2/TA3 pure titanium base metal is better, The corrosion resistance of welded joint is close to that of base metal, Welding wire is the preferred choice for titanium equipment welding

typical scenario: Chemical titanium equipment welding (reactor/heat exchanger/storage tank), marine engineeringtitanium pipeRoad welding, pharmaceutical equipment titanium welding, food grade equipment titanium welding

100 billion extension capacityΦ0.8/1.0/1.2/1.6/2.0/2.4/3.0/4.0mm Full specification coverage, 5kg/roll, 10kg/roll supplied on reel with AWS certificate

3.5 ERTi-5 titanium welding wire (AWS A5.16 standard·titanium alloy welding wire)

immunohistochemical localization: Corresponding to TC4 grade (Ti-6Al-4V), conforming to AWS A5.16 ERTi-5 standard

mechanical property: Tensile strength of weld seam ≥ 8 95 MPa, elongation ≥10%

core advantages：AWS Standard Titanium Alloy Welding Wire, The compatibility with TC4 titanium alloy base metal is better, The strength of welded joint is equivalent to that of base metal, Special welding wire for TC4 titanium alloy equipment welding

typical scenarioAerospace TC4 component welding, medical implant TC4 welding, high-end equipment TC4 structural welding, TC4 flange/pipe welding

100 billion extension capacity: Φ0.8/1.0/1.2/1.6/2.0/2.4/3.0mm full specification coverage, supplied in reels of 5kg/roll, 10kg/roll, with AWS certificate attached

IV. Selection core: diameter × grade decision matrix

In fact, titanium wire and titanium alloy wire selection is not complicated, the core is"Use fixed diameter, base metal fixed brand"：

Titanium wire diameter × grade selection decision table

application scenarios	diameter interval	priority designation	Alternative designation	Core considerations
medical suture	Φ0.05-0.3mm	TA1	TA2	Biocompatibility + flexibility
Vascular stent braiding	Φ0.1-0.3mm	TA1	TC4	Precision + Biocompatibility
3D printing raw materials	Φ0.1-1mm	TA1	TC4	Purity + formability
Chemical spring/electrode	Φ0.5-3mm	TA2	TA1	Corrosion resistance + elasticity
fastener blank	Φ1-6mm	TA2	TC4	Strength + processability
Electrocoagulation electrode	Φ2-6mm	TA2	TA1	Conductivity + Electrolytic Resistance
Welding of thin-walled titanium equipment	Φ1.0/1.2mm	ERTi-2	TA1	Base material matching (TA1/2/3)
Welding of medium-thick titanium equipment	Φ1.6/2.0/2.4mm	ERTi-2	—	Base material matching (TA2)
ultra-thickTitanium Plateweld	Φ3.0/4.0/5.0/6.0mm	ERTi-2	—	large fill
TC4 component welding	Φ1.0-3.0mm	ERTi-5	—	Base metal matching (TC4)
welding in dilute hydrochloric acid environment	Φ1.0-3.0mm	TA9	ERTi-2	crevice corrosion resistance
Aerospace Precision Parts	Φ0.1-2mm	TC4	TA2	High strength + light weight
Medical implant accessories	Φ0.5-3mm	TC4 (implant grade)	TA2 (auxiliary parts)	Biocompatibility + Strength

Scene Decision Quick Check：

• Medical suture/vascular stentΦ0.05-0.3mm ultra-fine wire + TA1 (medical grade)
• 3D printing/precision electronicsΦ0.1-1mm Ultrafine/Fine + TA1/TC4
• Chemical spring/electrodeΦ0.5-3mm fine/medium filament + TA2
• Titanium equipment welding (80% use)Φ1.0-3.0mm medium wire + ERTi-2 (pure titanium base material)/ ERTi-5 (TC4 base material)
• Fasteners/ElectroflocculationΦ2-6mm thick filament + TA2

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 wire,Titanium Plate、titanium pipe、titanium bar、Titanium flange、titanium pipeParts, titanium welding wire,titanium stirrerAll kinds of titanium, andnickel plate, nickel rod, nickel wire, nickel steel composite plateNickel-base alloy materials.

The company relies on Baoji titanium valley industry advantages, standing Φ0.1-6mm titanium wire spot (including TA1/TA2/TA9 pure titanium wire +ERTi-2/ERTi-5 welding wire), according to customer to provide material certificate, third party inspection report (SGS/CTI/Puni), mechanical performance test report, AWS welding wire certification.

Support small batch (minimum 1kg), non-standard custom processing (special diameter/special grade/special packaging), short delivery timeSpot specifications about 7 days delivery, customized specifications about 15-25 days deliveryIt can be distributed nationally.

VI. Future prospects and manufacturer commitments

In the second half of 2026, withAerospace localization propulsion, Medical Device Upgrade, marine engineering capacity, the industrialisation of 3D printing, Electrocoagulation environmental protection equipment promotionsustained release, ERTi-2/ERTi-5 welding wire, Ultrafine medical titanium wire, Electrocoagulation electrode wire demand growth is more obvious, 0.1mm ultra-fine wire production cycle is relatively prolonged.

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

Selection suggestionsPlease provide application scenarios, diameter accuracy, Welding base metal designation, Special requirements (e.g. medical implant grade), AWS Standards), We will match you with better grades + specifications, 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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