Titanium wire: from brand selection to manufacturing process (2026 revision)
Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-07-22
Titanium Wire is made from titanium or titanium alloy blank, After multiple passes of drawing, vacuum annealing, pickling and passivating to form wire metal material, Normal diameter range 0.1~6.0mm.has high strength, low density, Excellent acid and alkali resistance seawater wet chlorine corrosion, good biocompatibility, Five core features of non-magnetism, Widely used in chemical electrode, medical implant, 3D printing, fastener, Aviation parts and other fields.
Titanium wire is a metal wire with special characteristics, 40% lighter than steel wire, Strength 1.5 times higher than aluminum wire, But the procurement cost is much higher than copper wire.industry data shows, 80% of titanium wire related failures are not rooted in the material itself, It's the wrong brand., Insufficient annealing process, Three major factors of surface pollution.Once the selection or process control is improper, Medical implants can fracture, Early failure of chemical electrode, 3D printing component scrap, Fasteners bite and other irreversible problems.
Titanium wire has obviously different properties compared with stainless steel wire and nickel wire.Titanium wire density is only 4.51g/cm³, much lower than stainless steel wire 7.93g/cm³ and nickel wire 8.90g/cm³;Tensile strength can reach 895~1100MPa, higher than the other two kinds of wire;But the elongation is low.corrosion resistant layer, Titanium wire can be used stably for more than 15 years in seawater conditions, Outstanding corrosion resistance in wet chlorine environment, non-magnetic, Excellent biocompatibility in medical scenarios.More difficult to process, Fast work hardening speed, The market unit price is in the range of 200~800 yuan/kg, Floats according to grade.
According to the statistics of Titanium Zirconium Branch of China Nonferrous Metals Industry Association, The domestic titanium wire market scale in 2024 is about 1.8 billion yuan, Annual growth rate of 30%.Medical titanium wire has a strong growth momentum, accounting for 28% in 2024 from 12% in 2020, making it the fastest growing segment in the segment.
First, titanium wire classification and brand selection
According to the material classification, TA1, TA2, TA3, TA4 belong to industrial pure titanium;TA9 is titanium palladium alloy, suitable for strong reducing acid, hydrometallurgical conditions;TA10 titanium-molybdenum-nickel alloy is suitable for high temperature wet chlorine and seawater heat exchange scenarios;TC4 titanium alloy is Ti-6Al-4V, which is mostly used for 3D printing, aviation fasteners and medical implants.TC4ELI low clearance version, belongs to high-end medical implant titanium wire;TC11 heat-resistant titanium alloy for aircraft engine parts;TA18 medium-strength titanium alloy is mostly used in aviation pipelines.
According to diameter specifications can be divided into four categories, 0.1-0.3mm ultra-fine wire, Tolerance requirements ±0.005mm, Used for medical suture, precision spring0.3-1.0mm filament, tolerance ±0.01mm, used for 3D printing, electrode wire, filter;1.0-3.0mm medium wire, tolerance ±0.02mm, used as fasteners, welding wires, bone nails;3.0-6.0mm thick wire, tolerance ±0.03mm, used for springs, electrode components, aerospace structural parts.Products are generally supplied in the form of coils, and the weight of each coil is 5~50kg.
Classified according to surface condition, bright anneal BA, No oxidation color on surface, Roughness Ra≤0.8μm, medical, 3D printing preferredAcid-washed passivation AP, silver-white passivation film on the surface, mostly used for chemical electrodes and mariculture;Hardened H, drawing hardened state, suitable for springs, fasteners;Semi-hard 1/2H combines strength and toughness;Annealed state M, the lowest strength, the best elongation, suitable for bending stamping and 3D printing wire feeding.
Industrial, medical, 3D printing titanium wire requirements are significantly different.TA4, TC4 and TC4 ELI grades are selected for medical titanium wire, and impurities are strictly controlled, so ISO13485 and ASTM F136 related certification are required;Industrial titanium wire is commonly used TA1, TA2, TA9, and TA10, and the index requirements are relatively loose;3D printing wire feeding is mainly TC4 and TC11, and the requirements for wire sphericity and diameter tolerance are high.
Second, titanium wire manufacturing process points
The biggest difference between titanium wire processing and stainless steel wire, Titanium absorbs hydrogen and oxygen above 400℃, At the same time, the work hardening speed is fast, Large drawing friction coefficient, Vacuum or argon protection is required for the whole process, With special drawing lubricant.Complete process flow:titanium barbillet into the factory, turning to remove the skin and acid pickling to remove the scale;vacuum protection annealing;Drawing for many times, controlling the reduction rate for each pass, interspersing annealing to eliminate work hardening;bright anneal is carried out aft that target wire diameter is achieved;Acid pickling passivation as required;Carry out chemical composition, mechanics, size, surface and eddy current flaw detection;Coil, label, vacuum package.
Work hardening is the main difficulty in titanium wire drawing, Titanium has a work hardening index 2 to 3 times that of steel., Hardness increases with each pull, Frequent intermediate annealing is required, Insufficient annealing is prone to wire breakage scrap.PCD polycrystalline diamond is selected for titanium wire drawing die, Wire drawing speed lower than stainless steel wire, Annealing must be carried out under vacuum or argon atmosphere, Avoid oxidative discoloration.
III. Implementation of standards, selection of procurement pit avoidance
The basic domestic standard is GB/T 3623 Titanium and Titanium Alloy Wire;Medical titanium wire complies with GB/T 13810;Welding wire reference YS/T 976;ASTM B863 is commonly used in international standards, ASTM F136 is used for medical implants, and ASTM F3055 is used for 3D printing additive wires.GB/T3623 Procurement Contract Recommendation, Superposition corresponds to industry-specific standards and technical requirements of drawings.
Titanium wire selection six-step method: the first step to confirm the use of scenarios;second, selecting an adaptive brand;The third step is to determine the diameter and tolerance;(4) determining the surface state;fifth, agreeing mechanical performance indexes;The sixth step is to clarify the test items and third-party inspection requirements.The purchase contract shall specify the brand number, wire diameter tolerance, surface states, mechanical indexes, Coil size, executive standard, Flaw detection requirements, Warranty period and material certification, Flaw detection records and other deliverables.
Procurement needs to focus on avoiding six major quality hazards: brand mixing, pure titanium as titanium alloy;Annealing is not sufficient, wire oxide blue purple, processing easy to crack;Work hardening residue, subsequent processing fracture;Diameter tolerance exceeded;Surface scratch caused by insufficient wire drawing lubrication;Different batch number mixing, composition fluctuation.
Domestic titanium wire technology mature, Stable supply of φ0.1-6.0mm titanium wire products, Compared with imported products, the cost performance is higher.High-end medical TC4ELI, aviation, 3D printing high-end silk imported products still exist premium.
IV. Industry development trend
Titanium wire industry three major development directions: medical titanium wire demand continues to increase, aging drives orthopedic implant market growth;3D printing laser wire deposition market rapid expansion, TC4 titanium wire demand rapid growth;Domestic substitution of aviation fasteners continues to advance, gradually reducing import dependence.
Relying on Baoji China Titanium Valley Industrial Advantage, Shaanxi Qianyi Tuoda Technology can supply TA 1, TC4ELI and other titanium wire, Support customization of different diameters, Titanium wire, Supporting material certificate, mechanical testing, eddy current inspection report, Medical adaptation, 3D printing, chemical electrode, mariculture, Aviation fasteners and other projects.
Titanium flangeDetailed explanation: material, seal, standard and selection, solve titanium equipment flange leakage problem
Titanium non-standard equipment "Sky round ground square" pipe fittings: from process principle to selection standard (2026 revision)
What about TA2 and TA10?Comparison of 3 real working conditions, reasonable material selection can save costs
data sources, Titanium Zirconium Branch of China Nonferrous Metals Industry Association, Titanium Industry Engineering Application Case
disclaimer, present process, Selection parameters are only for technical reference, medical, aviation, 3D printing titanium wire with high requirements, Selection and procurement shall be reviewed by professional engineers, Determine the final technical plan based on project working conditions.