GR1 GR2 GR3 GR4 Titanium Wire ISO 5832-2 The Manufacture Of
Surgical Implants
Product Introduction
The standard ISO 5832-2 is specifically designed for unalloyed
titanium, which is commonly used in the production of surgical
implants. Given that titanium closely resembles human bone in terms
of biocompatibility, it exhibits excellent compatibility with human
tissues and is non-toxic, devoid of any harmful side effects. This
renders it superior to other materials in ways that they cannot
match. As a result, medical-grade titanium alloys have gained
widespread use within the medical industry.
Unalloyed titanium consists solely of pure titanium, encompassing
grades such as GR1, GR2, GR3, and GR4. This type of titanium is
highly bio-compatible and relatively soft. It is employed in
applications where high strength is not essential but where
formability (ductility) is preferred. Pure medical titanium wire is
categorized into grades starting from Grade 1, which offers the
highest corrosion resistance and formability but the lowest
strength, to Grade 4, providing the highest strength with a
moderate level of formability.
Below Is Composition Comparison Of ASTM F67 And ISO 5832-2.
| Typical corresponding standard | Chemical composition (wt.%) |
| N | C | H | Fe | O |
| ASTMF67 Grade 1 | ≦0.03 | ≦0.08 | ≦0.015 | ≦0.20 | ≦0.18 |
| ISO 5832-2 Grade 1 | ≦0.03 | ≦0.06 | ≦0.013 | ≦0.15 | ≦0.12 |
| ASTMF67 Grade 2 | ≦0.03 | ≦0.08 | ≦0.015 | ≦0.30 | ≦0.25 |
| ISO 5832-2 Grade 2 | ≦0.05 | ≦0.06 | ≦0.013 | ≦0.20 | ≦0.18 |
| ASTMF67 Grade 3 | ≦0.05 | ≦0.08 | ≦0.015 | ≦0.30 | ≦0.35 |
| ISO 5832-2 Grade 3 | ≦0.05 | ≦0.06 | ≦0.013 | ≦0.25 | ≦0.25 |
| ASTMF67 Grade 4 | ≦0.05 | ≦0.08 | ≦0.015 | ≦0.50 | ≦0.40 |
| ISO 5832-2 Grade 4 | ≦0.05 | ≦0.06 | ≦0.013 | ≦0.30 | ≦0.35 |
Below Is Mechanical Property Comparision Of ASTM F67 And ISO5832-2
| Typical corresponding standard | Tensile strength
(N/mm2) | 0.2% Yield strength
(N/mm2) | Elongation
(%) | Reduction of area(%) |
ASTMF67
Grade 1 | ≧240 | ≧170 | ≧24 | ≧30 |
ISO 5832-2
Grade 1 | ≧240 | ≧170 | ≧24 | - |
ASTMF67
Grade 2 | ≧345 | ≧275 | ≧20 | ≧30 |
ISO 5832-2
Grade 2 | ≧345 | ≧275 | ≧20 | - |
ASTMF67
Grade 3 | ≧450 | ≧380 | ≧18 | ≧30 |
ISO 5832-2
Grade 3 | ≧450 | ≧380 | ≧18 | - |
ASTMF67
Grade 4 | ≧550 | ≧483 | ≧15 | ≧25 |
ISO 5832-2
Grade 4 | ≧550 | ≧483 | ≧15 | - |
Sizes (* different sizes are available upon request)
| Diameter | Tolerance |
| 0.60mm – 0.85mm (.025" - .033") | ± 0.01mm (.0003") |
| 0.85mm – 1.20mm (.033" - .047") | ± 0.02mm (.0007") |
| 1.20mm – 2.00mm (.033" - .080") | ± 0.025mm (.001") |
Cut-length Sizes(* different sizes are available upon request)
| Diameter | Tolerance | Length | Surface Roughness |
2.0mm –7.6mm (.08" - .30") | ±0.025mm (.001") | 990 mm – 3000 mm (39" – 118") | 24 or better |
Application
Titanium is extensively utilized in the medical field, particularly
in areas such as plastic surgery, dentistry, and a variety of
medical devices.
1. Once titanium is implanted into the human body, it undergoes a
series of transformations specifically within dental implant
materials. The raw material of the implant exhibits a natural
affinity with human bone epithelial tissues and connective tissues.
Its mechanical properties are also on par with other types of
dental materials, and due to its low density, it ensures that
dentures feel comfortable. In terms of aesthetic treatment, it can
meet the demands for an attractive smile with lifelike teeth.
2. It is broadly used in medical devices because medical titanium
wire possesses excellent corrosion resistance, and its surface
quality remains unaffected by repeated cleaning and sterilization
processes. Titanium medical wires are non-magnetic, which helps
eliminate the risk of damage to small and sensitive implanted
devices. Their lightweight nature allows them to be used as a
substitute for stainless steel, offering surgeons greater
flexibility during operations and reducing their fatigue. As a
result, medical titanium has been employed in the creation of
surgical blades, hemostats, scissors, electric bone drills,
tweezers, and other instruments.
