Grade 2 Titanium Ultrafine Wire

Grade 2 titanium ultrafine wire (American standard UNS R50400) is a standard strength grade product for industrial pure titanium materials, based on a titanium purity of >= 99.0%. Compared with Grade 1 titanium wire, its oxygen content is increased to <= 0.25% and iron content is <= 0.30%, forming a better balance between corrosion resistance and mechanical strength.

This Grade 2 titanium ultrafine wire is made through multiple precision cold drawing and electrolytic polishing processes, with a diameter range covering 0.02-0.2mm and a tolerance controlled within ± 0.005mm (high-precision level can reach ± 0.3 μ m). The surface roughness Ra is <= 0.15 μ m, and it has excellent formability and fatigue resistance. Its tensile strength reaches 345-450MPa, elongation >= 18%, and its hydrogen embrittlement resistance is significantly better than Grade 1 while maintaining a low density of 4.5g/cm ³.

	Grade 2 Titanium Ultra-fine Wire (UNS R50400)
	ASTM B863, ASTM F1678, ISO 9001
	Ti purity >=99.0%, O <=0.25%, Fe <=0.30%, other impurities <=0.5%
	Tensile Strength: 345-450 MPaYield Strength: ≥275 MPaElongation: ≥18%Bending Cycles: >80,000 times (no fracture)
	Density: 4.5 g/cm³Thermal Conductivity: 15.2 W/(m·K)Linear Expansion Coefficient: 8.6×10⁻⁶/℃
	0.02 mm - 0.2 mm (20 μm - 200 μm)
	General: ±0.005 mmHigh-precision: ±0.3 μm
	Electrolytic polishing, Ra <=0.15 μmPassivation treatment (TiO₂ film thickness: 5-10 nm)
	<0.0005 mm
	Cold drawing deformability: <=15% per passSuitable for welding (TIG/MIG), brazing, and electroplating
	Service temperature: -200℃ to 300℃Short-term tolerance: up to 400℃
	Lithium battery electrolyte filters (5-10 μm aperture)Hydrogen fuel cell catalyst supportsMarine desalination equipment componentsChemical reactor sensor leadsFood-grade mixing shafts (FDA compliant)EMI shielding meshes for electronics
	Material test report (ICP-OES, tensile test, metallographic analysis)ISO 13485 compliant for industrial applications
	Vacuum-sealed with argon in plastic spoolsSpool diameter: 450 mmMaximum length: 1000 m/roll

 

In terms of application scenarios, Grade 2 titanium ultrafine wires have become the core material for new energy and marine engineering due to their stronger resistance to crevice corrosion.

In lithium battery production, fine wires with a diameter of 0.05-0.1mm are electrochemically corroded to form 5-10 μ m pore size filters, which have a lifespan twice that of Grade 1 and are resistant to electrolyte organic acid corrosion, ensuring the stability of battery performance;

In the field of hydrogen fuel cells, the catalytic layer carrier woven with 0.08mm filaments has improved its corrosion resistance by 30% in humid and acidic environments, helping the energy density of the battery to exceed 3.5kW/L.

In marine engineering, the filtration components of seawater desalination equipment made of 0.15mm diameter filaments have an annual corrosion rate of less than 0.0005mm in salt spray environments, which is much better than stainless steel materials;

The sensor lead of the reaction kettle in the chemical industry (0.1mm) can resist strong corrosive media such as hydrochloric acid and sulfuric acid, and its service life is four times that of traditional materials.

Unlike the medical implantation scenario of Grade 1, Grade 2 focuses more on industrial grade corrosion-resistant applications, such as sterile mixing shafts (0.3mm) in the food and beverage industry, which comply with FDA food contact standards. It is also used in electronic devices to manufacture electromagnetic interference shielding nets (0.06mm), which have both strength and signal protection functions.

In terms of production technology, Grade 2 titanium ultrafine wires are melted twice in a vacuum consumable arc furnace, with strict control over the distribution of gap elements. During the cold drawing process, the deformation per pass is increased to 10-15%, and high-temperature annealing (700-800 ℃) is used to eliminate work hardening, ensuring the uniformity of the wire structure. The finished product undergoes ultrasonic cleaning and passivation treatment, forming a dense TiO ₂ oxide film on the surface to enhance corrosion resistance.

All products come with material certificates (including ICP-OES chemical composition analysis, tensile test reports, and grain size testing results), meeting ISO 9001 quality system certification. As a foreign trade supplier, we offer customized diameters (0.02-0.2mm), surface nickel/gold plating treatment, and maximum 1000 meter scroll packaging,Support production according to multiple standards such as ASTM, JIS, GB, etc., suitable for bulk demand in industrial fields such as chemical equipment, new energy batteries, and marine engineering.

 

 

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