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Grade 21 Titanium vs. ASTM A182 Grade F92

Grade 21 titanium belongs to the titanium alloys classification, while ASTM A182 grade F92 belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 21 titanium and the bottom bar is ASTM A182 grade F92.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 9.0 to 17
22
Fatigue Strength, MPa 550 to 660
360
Poisson's Ratio 0.32
0.28
Reduction in Area, % 22
51
Shear Modulus, GPa 51
76
Shear Strength, MPa 550 to 790
440
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
690
Tensile Strength: Yield (Proof), MPa 870 to 1170
500

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 310
590
Melting Completion (Liquidus), °C 1740
1490
Melting Onset (Solidus), °C 1690
1450
Specific Heat Capacity, J/kg-K 500
470
Thermal Conductivity, W/m-K 7.5
26
Thermal Expansion, µm/m-K 7.1
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
11
Density, g/cm3 5.4
7.9
Embodied Carbon, kg CO2/kg material 32
2.8
Embodied Energy, MJ/kg 490
40
Embodied Water, L/kg 180
89

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 180
140
Resilience: Unit (Modulus of Resilience), kJ/m3 2760 to 5010
650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 32
24
Strength to Weight: Axial, points 46 to 69
24
Strength to Weight: Bending, points 38 to 50
22
Thermal Diffusivity, mm2/s 2.8
6.9
Thermal Shock Resistance, points 66 to 100
19

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0 to 0.020
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0 to 0.050
0.070 to 0.13
Chromium (Cr), % 0
8.5 to 9.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
85.8 to 89.1
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 14 to 16
0.3 to 0.6
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 2.2 to 3.2
0.040 to 0.090
Nitrogen (N), % 0 to 0.030
0.030 to 0.070
Oxygen (O), % 0 to 0.17
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.15 to 0.25
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 76 to 81.2
0 to 0.010
Tungsten (W), % 0
1.5 to 2.0
Vanadium (V), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.010
Residuals, % 0 to 0.4
0