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ASTM A302 Alloy Steel vs. Grade 16 Titanium

ASTM A302 alloy steel belongs to the iron alloys classification, while grade 16 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is grade 16 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20 to 23
23
Fatigue Strength, MPa 250 to 280
240
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
38
Shear Strength, MPa 370 to 390
250
Tensile Strength: Ultimate (UTS), MPa 590 to 620
400
Tensile Strength: Yield (Proof), MPa 350 to 390
340

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 410
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 39 to 51
22
Thermal Expansion, µm/m-K 13
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
7.2

Otherwise Unclassified Properties

Density, g/cm3 7.8 to 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
36
Embodied Energy, MJ/kg 20 to 21
600
Embodied Water, L/kg 48 to 50
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
86
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 21 to 22
25
Strength to Weight: Bending, points 20 to 21
27
Thermal Diffusivity, mm2/s 10 to 14
8.9
Thermal Shock Resistance, points 17 to 18
29