Direct from our ISO 9001:2015 certified production lines: ultra-durable, corrosion-proof Grade 5 (Ti-6Al-4V) and Grade 9 custom machined fasteners and assemblies ready for fast transit to Sofia and European industrial clusters.
Ultra-lightweight Ti-6Al-4V bolts engineered for high structural integrity, exceptional corrosion fatigue resistance, and metric/torx specifications.
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Manufactured to ASTM F136 surgical/aerospace standards, ensuring ultimate shear resilience under repetitive thermal shock and wet braking loads.
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Precision cold-forged and CNC finish-machined bolts designed for motorsport engine mountings and precision industrial machinery.
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Lightweight titanium chassis integrating rapid DIY quick-release mechanics and window-breaking capabilities for professional outdoor teams.
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5mm CNC-milled load-distributing washer spacers featuring controlled oxide anodizing with zero thread interference or hydrogen embrittlement.
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Precision-balanced titanium wave generator and flexspline assemblies designed for aerospace robotics, mechatronics, and CNC indexing.
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Engineered for extreme torque retention, anti-galling thread geometry, and minimal mass in competition cycling and high-vibration equipment.
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Class 6 UNC/Metric threads finished with corrosion-inhibiting PVD black layer. Rustproof, non-magnetic, and chemically resilient in salt spray.
Explore SpecificationsSelecting the optimal titanium grade for engineering operations across Sofia's machine shops, defense sub-contractors, and automotive research laboratories requires understanding crystal-lattice kinetics and thermal dynamics during subtractive milling. Commercially Pure Grade 2 titanium (alpha-phase hexagonal close-packed structure) delivers superior formability and outstanding passivation against acidic and marine oxidation, exhibiting an ultimate tensile strength of roughly 345 to 450 MPa. In contrast, Grade 5 Titanium (Ti-6Al-4V, ISO 5832-3 / ASTM B348) represents an alpha-beta duplex alloy that shifts mechanical yields into the aerospace spectrum, generating a minimum tensile strength of 895 MPa and a yield strength surpassing 828 MPa.
Machining Ti-6Al-4V presents notorious tribological challenges: low thermal conductivity (6.7 W/m·K compared to carbon steel's 50 W/m·K) concentrates high operating temperatures at the cutting edge. Wexra Titanium solves tool wear and work hardening through high-pressure direct-channel flood cooling, customized physical vapor deposition (PVD) TiAlN/AlTiN coated carbide cutting tools, and rigid vibration-damped 5-axis CNC machining stations. This guarantees that parts intended for mission-critical joints maintain pristine crystal integrity without localized residual thermal strain.
| Physical & Mechanical Attribute | Titanium Grade 5 (Ti-6Al-4V) | Titanium Grade 2 (CP) | AISI 316L Stainless Steel | Class 10.9 Alloy Steel |
|---|---|---|---|---|
| Density (g/cm³) | 4.43 (Ultralight) | 4.51 (Ultralight) | 7.98 (Heavy) | 7.85 (Heavy) |
| Ultimate Tensile Strength (MPa) | ≥ 895 - 950 | ≥ 345 - 450 | ≥ 580 - 620 | ≥ 1040 |
| Yield Strength (0.2% Offset, MPa) | ≥ 828 | ≥ 275 | ≥ 290 | ≥ 940 |
| Modulus of Elasticity (GPa) | 114 | 105 | 193 | 205 |
| Chloride Pitting Resistance (PREN) | Immune in Natural Waters | Immune in Natural Waters | Moderate (PREN ~23-25) | Zero (Rapidly Corrodes) |
| Thermal Conductivity (W/m·K) | 6.7 | 16.4 | 16.3 | 46.6 |
Bulgaria has evolved into one of Eastern Europe's most dynamic hubs for specialized automotive engineering, Mechatronics, and aerospace sub-assemblies. The metropolitan region of Sofia, coupled with the neighboring industrial zones of Bozhurishte, Elin Pelin, and the broader Maritsa economic corridor, presents sophisticated engineering requirements where standard carbon steel and aluminum hardware are being rapidly phased out.
Sofia's burgeoning robotics labs demand high strength-to-weight ratios for end-effectors, robotic arms, and harmonic reducer systems (such as our INNOTECH series). Replacing heavy steel brackets with Grade 5 CNC-machined components drastically lowers rotational inertia, improving positioning precision down to arc-seconds.
As unmanned aerial vehicle (UAV) manufacturers and aviation maintenance facilities expand near Sofia Airport (SOF) and surrounding tech parks, our ASTM F136 and AMS 4928 certified bolts and laser-cut chassis bulkheads ensure structural airworthiness while eliminating excess payload weight.
Bulgaria's domestic bicycle manufacturing ecosystem has risen to become one of the EU’s largest exporters. Wexra's lightweight M5/M6 disc-brake bolts, hollowed wheel axles, and DIN 912 titanium socket heads give performance mountain and road bike manufacturers an edge in torsional strength and weather resistance.
Procurement managers across Bulgaria face twin pressures: stringent compliance with European environmental directives and rapid product iteration cycles. The Sofia industrial market is undergoing a notable transition toward precision direct-import partnerships. Local engineering firms increasingly bypass intermediate European trading hubs, sourcing directly from verified Chinese manufacturers who maintain full domestic quality control, ISO 9001:2015 registries, and certified testing documentation.
Furthermore, adherence to RoHS (Restriction of Hazardous Substances) and REACH (EC 1907/2006) chemical safety regulations is mandatory for components entering the Bulgarian customs territory. By providing comprehensive Spectrometric Chemical Analysis Reports, Material Test Certificates (EN 10204 Type 3.1), and fully traceable batch documentation, Wexra Titanium provides Sofia's original equipment manufacturers (OEMs) with zero-risk integration into their EU downstream supply lines.
Founded in 2018 in Jiaxing, Zhejiang—the manufacturing heartland of precision mechanics—Jiaxing Wexra Titanium Products Co., Ltd. is a dedicated manufacturer focused exclusively on titanium and titanium-alloy machining. We operate an advanced, climate-controlled facility with over 1,000 square meters of specialized production space, engineered to serve global B2B procurement demands across Germany, the UK, the United States, and Bulgaria.
Unlike cut threads that tear the titanium grain structure, our fasteners feature cold-rolled threads. This burnishes the root radii, prevents stress micro-cracks, and increases fatigue cycles by up to 300% under cyclical vibration.
Every order undergoes Design for Manufacturability (DFM) verification prior to cutting. Batch-specific spectral composition and tensile testing accompany shipments, meeting ISO 9001:2015, CE, and UKCA verification requirements.
Streamlined logistics frameworks deliver door-to-door or DAP/CIF terms via Sofia Airport (SOF) air freight or sea consolidation through Varna/Burgas or Thessaloniki, complete with export customs clearance paperwork.
Key information regarding international logistics, material verification, galling prevention, and bespoke OEM tooling protocols.