ISO 5832-2 Unalloyed Titanium for Surgical Implant
- Grade 1 ELI, Grade 1, Grade 2, Grade 3, Grade 4A and 4B
- Excellent Biocompatibility
- Corrosion Resistance
- Lower Strength Compared to Alloys
- Good Ductility and Formability
- Lower Modulus of Elasticity
ISO 5832-2 Unalloyed Titanium Bar for Surgical Implant
Golden Sunbird Metals offers high-quality ISO 5832-2 unalloyed titanium bars for surgical implant applications, engineered to meet the demanding standards of the medical industry. Known for its excellent biocompatibility, outstanding corrosion resistance, low density, and reliable mechanical performance, unalloyed titanium is a trusted material for a wide range of implantable medical devices. ISO 5832-2 titanium bars are widely used in orthopedic, dental, and trauma applications where long-term stability and patient safety are essential. At Golden Sunbird Metals, we supply titanium bars with consistent material quality, precise composition control, and dependable processing to support advanced medical manufacturing. Whether for implant production, research, or specialized fabrication, our ISO 5832-2 unalloyed titanium bars provide the strength, purity, and reliability required for surgical-grade performance. Choose Golden Sunbird Metals as your trusted source for premium titanium materials designed for critical healthcare applications.
Chemical Composition (wt.%) of ISO 5832-2 Unalloyed Titanium for Surgical Implant
| Element | Grade 1 ELI | Grade 1 | Grade 2 | Grade 3 | Grades 4A and 4B |
| Nitrogen | 0.012 | 0.03 | 0.03 | 0.05 | 0.05 |
| Carbon | 0.03 | 0.1 | 0.1 | 0.1 | 0.1 |
| Hydrogen | 0.0125 | 0.0125 | 0.0125 | 0.0125 | 0.0125 |
| Iron | 0.1 | 0.2 | 0.3 | 0.3 | 0.5 |
| Oxygen | 0.1 | 0.18 | 0.25 | 0.35 | 0.4 |
| Titanium | Balance | Balance | Balance | Balance | Balance |
Note: For billets, the maximum hydrogen content shall be 0.010 % (mass fraction) and for flat products for the maximum hydrogen content shall be 0.015 % (mass fraction).
Mechanical Properties of ISO 5832-2 Unalloyed Titanium for Surgical Implant
| Grade | Condition | Tensile Strength (min. MPa) | Proof Stress of non-proportional elongation (min. MPa) | Percentage Elongation (min. %) | Mandrel Diameter for Bend Test for Sheet and Strip (mm) |
| 1 ELI | Annealed | 200 | 140 | 30 | 2 mm ≤ t < 5 mm: 3 t < 2 mm: 4 |
| 1 | Annealed | 240 | 170 | 24 | 2 mm ≤ t < 5 mm: 3 t < 2 mm: 4 |
| 2 | Annealed | 345 | 275 | 20 | t ≥ 2 mm: 4 t < 2 mm: 5 |
| 3 | Annealed | 450 | 380 | 18 | t ≥ 2 mm: 4 t < 2 mm: 5 |
| 4A | Annealed | 550 | 483 | 15 | t ≥ 2 mm: 5 t < 2 mm: 6 |
| 4B | Cold-worked | 680 | 520 | 10 | t ≥ 2 mm: 6 t < 2 mm: 6 |
Notes:
- Tensile, yield, and bending requirements of the sheet shall apply to material taken both parallel and perpendicular to the direction of rolling.
- Gauge length = 5.65√So, or 50 mm, where So is the original cross-sectional area, in square millimetres.
- Ct = thickness of the sheet or strip.
Features
- ISO 5832-2 Unalloyed Titanium (commercially pure CP Ti) bars specifically for surgical implants (Grades 1 ELI, 1, 2, 3, 4A & 4B available).
- Excellent biocompatibility with minimal tissue reaction, designed for long-term direct contact with human body tissues.
- Outstanding corrosion resistance in physiological environments, ensuring implant durability without degradation over time.
- Lower elastic modulus compared to alloys, effectively reducing stress shielding and improving load transfer to surrounding bone.
- Superior ductility and formability for easy machining and shaping into complex medical components.
- Good balance of moderate strength and high workability, ideal where high mechanical load is not the primary requirement.
- Meets stringent mechanical properties in annealed or cold-worked condition with full traceability and EN 10204 3.1/3.2 certification.
- Available in bars, sheets, plates, and wires with strict quality control including chemical analysis, grain size, tensile, and bend testing.
Technical Specifications
| Specification | Value |
| Standard | ISO 5832-2 Unalloyed Titanium Bar for Surgical Implants |
| Grade | Grade 1 ELI, Grade 1, Grade 2, Grade 3, Grade 4A, Grade 4B |
| Type | Alloy Bar, Sheet, Plate, Wire |
| Dimension | Bar—Round bars and flats from 5.50 to 94.0 mm [0.218 to 3.70 in.] in diameter or thickness （other sizes or shapes by special order）. |
| Sheet—Any product 0.188 in. (4.76 mm) and under in thickness and 24 in. (610 mm) or more in width. | |
| Plate—Any product 5.50 up to 94.0 mm [0.218 to 3.70 in.] in thickness, with a width equal to or greater than five times the thickness. | |
| Wire—Smaller than 0.218″ (5.5mm) in outer diameter. | |
| Density | 4.51g/cm³ |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical Composition, Grain Size ISO 643/ASTM E112, Tensile Test ISO 6892-1, 105° Bending Test ISO 7438 |
Applications
- Dental implants, abutments, crowns, bridges, and prosthetic components requiring excellent osseointegration and formability.
- Cranio-maxillofacial reconstruction plates, screws, and facial implants for precision shaping and tissue compatibility.
- Low-stress orthopedic auxiliary components and selected spinal fixation parts where reduced modulus benefits bone health.
- Pacemaker housings, electronic medical device enclosures, and precision housings needing corrosion resistance and biocompatibility.
- Non-load-bearing or low-load bone fixation devices and fracture repair components in less demanding applications.
- Trauma reconstruction elements and custom medical parts leveraging superior ductility for complex geometries.
- Specialty long-term implantable components after proper qualification, heat treatment, and regulatory approval for surgical use.
