Обзор
ASTM F67-01 is the standard specification for unalloyed titanium (Commercially Pure / CP titanium) intended for surgical implant applications. It covers four grades of CP titanium (Grades 1–4), differentiated primarily by oxygen and iron content, which control strength and ductility. ASTM F67 was technically equivalent to the now-withdrawn ASTM B348 for bar and has been largely superseded by ASTM F67 (current editions) and ISO 5832-2. CP titanium is valued in medical and industrial applications for its excellent biocompatibility, outstanding corrosion resistance, and good formability.
Описание (Английский)
ASTM F67-01 is the standard specification for unalloyed titanium (Commercially Pure / CP titanium) intended for surgical implant applications. It covers four grades of CP titanium (Grades 1–4), differentiated primarily by oxygen and iron content, which control strength and ductility. ASTM F67 was technically equivalent to the now-withdrawn ASTM B348 for bar and has been largely superseded by ASTM F67 (current editions) and ISO 5832-2. CP titanium is valued in medical and industrial applications for its excellent biocompatibility, outstanding corrosion resistance, and good formability.
Диапазон Размеров
- thk:0.016 in (0.4 mm) up to 0.187 in (4.75 mm)
- wid:36 in (914 mm) up to 48 in (1219 mm)
- l:96 in (2438 mm) up to 120 in (3048 mm)
Спецификация Марки
| Система | Значение |
|---|---|
| UNS(Gr.1-4) | R50250 / R50400 / R50550 / R56700 |
| Standard / designation | ASTM F67 |
| 🇩🇪 DIN | 3.7025/3.7035/3.7055/3.7065 |
| 🇨🇳 GB | TA1/TA2/TA3/TA4 |
| 🇺🇸 ASME | SB-265 Gr.1/SB-265 Gr.2/SB-265 Gr.3/SB-265 Gr.4 |
Химический Состав
| Элемент | Значение |
|---|---|
| N | ≤ 0.03 |
| C | ≤ 0.08 |
| H | ≤ 0.015 |
| Fe | ≤ 0.20 |
| O | ≤ 0.20 |
| Ti | Remainder |
Механические Свойства
| productCenter.property | Значение |
|---|---|
| Tensile Strength (MPa) | ≥ 240 |
| Yield Strength (MPa, 0.2% offset) | ≥ 170 |
| Elongation (%) | ≥ 24 |
| Reduction of Area (%) | ≥ 30 |
| Hardness (HV) | ~120 |
| Elastic Modulus (GPa) | ~103 |
Физические Свойства
| Свойство | Единица | Значение |
|---|---|---|
| Density (g/cm³) | g/cm³ | 4.51 |
| Melting Point (°C) | °C | 1668 |
| Beta Transus (°C) | - | 890 |
| Modulus of Elasticity (GPa) | GPa | 103 |
| Modulus of Rigidity (GPa) | - | 44 |
| Poisson's Ratio | - | 0.37 |
| Coefficient of Thermal Expansion (µm/m·°C, 0–100°C) | ×10⁻⁶/K | 8.6 |
| Thermal Conductivity (W/m·K, 25°C) | W/m·K | 17.0 |
| Electrical Resistivity (nΩ·m, 25°C) | μΩ·cm | 564 |
| Specific Heat (J/kg·K) | J/kg·K | 523 |
| Electrical Conductivity (% IACS) | - | 3.1 |
| Crystal Structure | - | HCP (Alpha) |
Применение
- Medical / Surgical
- Industrial