ภาพรวม
Titanium Grade 2 (also known as Commercially Pure Titanium, CP Ti Gr.2) is an unalloyed titanium grade offering an excellent balance of moderate strength, exceptional corrosion resistance, outstanding formability, and good weldability. It is the most widely used grade of commercially pure titanium, often serving as the workhorse titanium for industrial, marine, and chemical processing applications where high corrosion resistance is required but the strength of higher grades is unnecessary.
คำอธิบาย (อังกฤษ)
Grade 2 is the default choice for chemical processing, marine hardware, heat exchangers, medical implants, and any application where corrosion resistance and biocompatibility are paramount. For higher strength requirements, Grade 5 (Ti-6Al-4V) or Grade 23 (Ti-6Al-4V ELI) are typically specified.
ช่วงขนาด
- Thickness: up to 150 mm+ custom
- Width: 500 mm – 2,540 mm (20" – 100")
- Length: 1,000 mm – 6,096 mm (40" – 240")
ข้อกำหนดเกรด
| ระบบ | ค่า |
|---|---|
| 🇺🇸 UNS | R50400 |
| 🇺🇸 ASTM | Grade 2 (CP Titanium) |
| 🇺🇸 AMS | AMS 4902 |
| 🇩🇪 DIN | 3.7035 |
| 🇪🇺 EN | Grade 2 (Ti2) |
| 🇯🇵 JIS | TP340H / Class 2 |
| 🇨🇳 GB | TA2 (GB/T 3620.1) |
| 🇷🇺 GOST | BT1-0 (approximate; lower O) |
| ASTM F67 | Grade 2 (implant grade) |
องค์ประกอบทางเคมี
| ธาตุ | ค่า |
|---|---|
| Ti | ≥ 99.0 |
| Fe | 0.30 |
| O | 0.25 |
| C | 0.10 |
| N | 0.03 |
| H | 0.015 |
| Other (each) | 0.10 |
| Other (total) | 0.40 |
คุณสมบัติเชิงกล
| productCenter.property | ค่า |
|---|---|
| Tensile Strength Rm | ≥ 345 MPa |
| Yield Strength Rp0.2 | ≥ 275 MPa |
| Elongation A (50 mm) | ≥ 20% |
คุณสมบัติทางกายภาพ
| คุณสมบัติ | หน่วย | ค่า |
|---|---|---|
| Density | g/cm³ | 4.51 g/cm³ (0.163 lb/in³) |
| Melting Point | °C | ~1,660 °C (3,020 °F) |
| Boiling Point | - | ~3,287 °C (5,949 °F) |
| Modulus of Elasticity | GPa | 105 GPa (15.2 × 10⁶ psi) |
| Shear Modulus | - | 42 – 45 GPa |
| Poisson's Ratio | - | 0.34 – 0.37 |
| Thermal Conductivity (20°C) | W/m·K | 17 – 21.9 W/(m·K) |
| Specific Heat (20°C) | J/kg·K | 0.523 J/(g·K) |
| Coefficient of Thermal Expansion (20–100°C) | ×10⁻⁶/K | 8.6 ppm/°C (4.8 ppm/°F) |
| Electrical Resistivity | μΩ·cm | 0.55 – 0.58 μΩ·m |
| Electrical Conductivity | - | ~3% IACS |
การใช้งาน
- Chemical Processing
- Marine / Seawater
- Power Generation
- Medical / Pharmaceutical
- Aerospace
- Industrial