TA1
TA1 is industrial pure titanium. Dense metallic titanium with a titanium content of not less than 98% and containing a small amount of impurities such as oxygen, nitrogen, hydrogen, carbon, silicon and iron. oxygen,Nitrogen, carbon, hydrogen… The material grades of China’s industrial pure titanium are divided into three grades: TA1, TA2 and TA3 according to their impurity content. These three industrialThe interstitial impurity elements of pure titanium gradually increase, so its mechanical strength and hardness also gradually increase, but the plasticity and toughness decrease accordingly.
Content
Chemical composition of TA1(%)
| Chemicai composition | (WT%) |
|---|---|
| (Ti) | remainder |
| (Fe) | ≤0.25 |
| (C) | ≤0.10 |
| (N) | ≤0.03 |
| (H) | ≤0.015 |
| (O) | ≤0.20 |
| other impurity（singleness） | ≤0.1 |
| other impurity （sum） | ≤0.4 |
Mechanical properties of TA1 alloy
| Mechanical properties at room temperature ≥ | TA1 | TA2 | TA3 | TA5 | TA6 | TA7 | TC1 | TC2 | TC4 | TC6 | TC9 | TC10 | TC11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tensile Strength MPa | 343 | 441 | 539 | 686 | 686 | 785 | 588 | 686 | 902 | 981 | 1059 | 1030 | 1030 |
| Yield Strength σ0.2MPa | 275 | 373 | 461 | -- | -- | -- | -- | -- | 824 | -- | -- | -- | -- |
| Elongation δ5% | 25 | 20 | 15 | 15 | 10 | 10 | 15 | 12 | 10 | 10 | 9 | 12 | 10 |
| Shrinkage ψ % | 50 | 40 | 35 | 40 | 27 | 27 | 30 | 30 | 30 | 23 | 25 | 25~30 | 30 |
| Impact value αkJ/cm2 | -- | -- | -- | 58.8 | 29.4 | 29.4 | 44.1 | 39.2 | 39.2 | 29.4 | 29.4 | 34.3 | 29.4 |
| High temperature mechanical properties ≥ | |||||||||||||
| Test temperature °C | -- | -- | -- | -- | 350 | 350 | 350 | 350 | 400 | 400 | 500 | 400 | 500 |
| Tensile Strength σb MPa | -- | -- | -- | -- | 422 | 490 | 343 | 422 | 618 | 736 | 785 | 834 | 686 |
| Long-lasting strength σ100MPa | -- | -- | -- | -- | 392 | 441 | 324 | 392 | 569 | 667 | 588 | 785 | 588 |
Applications of TA1
1. Mainly used in aerospace, navigation, nuclear power, electronics, chemical industry, petroleum, precision manufacturing, medical pharmaceuticals, etc.
2. Thermal power station condenser;
3. Piping systems, valves, and pumps corroded by seawater;
4. Chemical heat exchangers, pump bodies, distillation towers; seawater desalination systems, platinum-coated anodes;
5. Aircraft frame, skin, engine parts, beams, etc.
