Precision engineered DIN 988, DIN 125, and bespoke micro-clearance Gr2/Gr5 titanium shims deployed across Turku’s leading maritime, clean-tech, and high-performance engineering sectors.
Combining Baoji’s world-renowned non-ferrous metallurgy with tight-tolerance 3-axis CNC turning and stamping, each product matches rigorous European and Nordic industrial standards.
The coastal city of Turku (Åbo) serves as Finland’s maritime gateway and one of Northern Europe’s most demanding industrial epicenters. In high-stress marine architectures, cruise-ship propulsion suites at Meyer Turku, subsea inspection vehicles, and cryogenic fluid pipelines, common austenitic stainless-steel shims (such as AISI 304 or 316L) routinely face pitting, crevice corrosion, and mechanical fatigue when subjected to the hyper-saline, brackish waters of the Archipelago Sea.
As leading manufacturers situated in Baoji—China's legendary Titanium Valley—our engineered Grade 2 commercially pure titanium and Grade 5 (Ti-6Al-4V) titanium shim washers solve these fundamental metallurgical vulnerabilities. Designed to provide exact axial spacing, preload compensation, and vibration dampening in dynamic assemblies, our precision titanium shims deliver an unbeatable strength-to-weight ratio and total chemical immunity to coastal Baltic chlorides.
Turku’s shipyards lead the globe in building ultra-luxury, energy-efficient cruise vessels. Titanium shims prevent galvanic degradation between carbon fiber composite rudders, bronze propellers, and structural marine bulkheads exposed directly to Baltic spray.
Turbine nacelles and Baltic offshore platforms rely on thin DIN 988 titanium shims for high-precision bearing preload adjustment. Titanium avoids hydrogen embrittlement while retaining elastic memory across freezing sub-zero Finnish winters.
In Southwest Finland's paper, pulp, and wastewater treatment facilities, process pumps and valve bodies routinely circulate chlorinated bleaching solutions. Titanium washers protect bolted joints from severe localized crevice corrosion.
Choosing the correct alloy prevents catastrophic mechanical assembly failure and expensive dry-dock downtime.
| Property Parameter | Commercial Pure Titanium Gr2 | Ti-6Al-4V Alloy (Grade 5) | Marine Stainless Steel (316L) |
|---|---|---|---|
| Yield Strength (Rp 0.2) | 275 – 350 MPa | 828 – 910 MPa | 220 – 290 MPa |
| Tensile Strength (Rm) | ≥ 345 MPa | ≥ 895 MPa | 520 – 680 MPa |
| Density Ratio | 4.51 g/cm³ (−43% vs Steel) | 4.43 g/cm³ (−44% vs Steel) | 7.98 g/cm³ (Heavy) |
| Chloride Pitting Resistance | Complete Passivation (TiO₂) | Total Immunity <300°C | Vulnerable to Crevice Creep |
| Thermal Expansion (20-100°C) | 8.6 × 10⁻⁶ / K | 8.6 × 10⁻⁶ / K | 16.0 × 10⁻⁶ / K |
| Elastic Modulus (E) | 105 GPa (High Flexibility) | 114 GPa (Optimal Spring Rate) | 193 GPa (Rigid) |
The manufacturing ecosystem of Turku is rapidly advancing toward carbon neutrality, lifecycle electrification, and zero-defect modular naval construction under the European Green Deal. This transformative shift alters standard hardware requirements in several distinct ways:
1. Electrification of Marine Vessels & Subsea Systems: As hybrid-electric ferries and unmanned autonomous vessels (AUVs) take center stage in the Gulf of Bothnia, battery compartments and sensitive navigational sensors mandate non-magnetic fastening components. Titanium’s absolute paramagnetic profile eradicates magnetic interference in steering and compass instrument mounts.
2. Adoption of High-Precision Micro-Tolerancing: Modern multi-axis propulsion systems operating with sub-micron tolerances cannot tolerate imprecise, punched sheet washers. Turku engineers demand CNC milled or high-speed precision wire-EDM titanium shims down to 0.05mm increments with surface flatness controlled within ±0.005mm to distribute dynamic clamping loads evenly.
3. Elimination of Galvanic Corrosion in Hybrid Carbon Structures: Weight minimization programs utilize carbon fiber reinforced polymers (CFRP) bound to metal matrices. Pairing standard steel or aluminum with CFRP triggers intense galvanic current loops. Titanium possesses an electrode potential perfectly harmonious with carbon structures, eradicating sacrificial oxidation.
Combining primary mill capabilities in China's Titanium Valley with agile export engineering.
Founded in 2013 in the High-Tech Development Zone of Baoji, Shaanxi, we source our sponge and vacuum-arc remelted titanium directly from primary smelters. We guarantee authentic heat lots and full chemical verification without trading-house markups.
Equipped with over 100 sets of advanced 3-axis, 4-axis, and multi-spindle CNC machining units, we produce non-standard titanium shims, flange nuts, and bespoke mechanical hardware strictly conforming to ISO, DIN, and custom CAD drawings.
Every delivery destined for Turku and Nordic ports is accompanied by comprehensive quality documentation, including mechanical tensile reports, Rockwell hardness testing, optical profile projector checks, and chemical composition analysis.
Real-world engineering, logistical, and commercial inquiries answered by our senior metallurgical staff.
Speak directly with our Baoji engineering headquarters. Submit your target dimensions, material grade, or STEP drawing for an expedited manufacturing review and formal quotation within 24 hours.