Pure titanium material properties

●Density 4.51 (about 60% of steel) Non-magnetic (magnetic permeability 1.0001)

Chemical components
Pure titanium Chemical components(%)
H O N Fe Ti
0.015 0.20 0.05 0.25 Remaining
part
Physical properties/Comparison with other metals
Item Pure titanium Iron SUS304 Aluminum Copper
Specific gravity 4.51 7.9 7.9 2.7 8.9
Melting point(℃) 1668 1530 1400 650 1083
Specific heat(J/k･K) 0.519 0.460 0.502 0.879 0.385
Linear expansion coefficient(/K) 8.4×10-6 12×10-6 17×10-6 23×10-6 17×10-6
Thermal conductivity(W/m・K) 17 63 16 205 385
Electrical resistivity(μΩ・m) 0.55 0.097 0.72 0.027 0.017
Electrical conductivity(% ratio for copper) 3.1 18 2.4 64 100
Vertical modulus of elasticity(GPa) 106.3 205.8 199.9 69.1 107.8
Poisson's ratio 0.34 0.31 0.30 0.33 0.34
Mechanical properties
Item Unit   TemperatureCharacteristics
0℃ 200℃ 400℃
Tensile strength MPa 340-510 441 245 147
0.2 yield strength MPa ≧215 304 147 78
Elongation ％ ≧23 23 45 40
Contraction ％ ≧40 Note: Does not exhibit sudden embrittlement until extreme cold temperatures (around -200℃).
Hardness HV 160
Specific strength MPa 75

Note: The numeric values above are typical values. They are not standard values.

Chemical resistance
Chemical name Composition(％) Evaluation
Hydrochloric acid 10 ○
30 ×
Sulfuric acid 10 △
50 ×
Nitric acid 10 ◎
50 ◎
Phosphoric acid 10(Ventilation) ○
50(Ventilation) △
Ferric chloride 10 ◎
30 ◎
Cupric chloride 10 ○
30 ○
Sodium chloride 10 ◎
40 ◎
Calcium chloride 10 ◎
50 ◎
Ammonium chloride 10 ◎
40 ◎
Chemical name Composition(％) Evaluation
Ammonia 10 ◎
30 ◎
Caustic soda 10 ◎
50 ◎
Hydrogen sulfide Dry gas ◎
Wet gas ◎
Chlorine Dry gas ×
Wet gas ◎
Seawater High flow velocity ◎
Acetic acid 10 ◎
60 ◎
Formic acid 10 ○
50 ○
Citric acid 10 ◎
50 ◎

Explanation of symbols:
◎: <0.127, ○: 0.127 to 0.508, △: 0.508 to 1.27, ×: >0.27 mm/year Test temperatures are all ambient (24°C)
Note : For actual use, always conduct testing since differences occur due to usage conditions. The numeric values above are typical values. They are not standard values.