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ASTM A202 Steel vs. R56401 Titanium

ASTM A202 steel belongs to the iron alloys classification, while R56401 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A202 steel and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 17 to 18
9.1
Fatigue Strength, MPa 240
480
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
40
Shear Strength, MPa 360 to 410
560
Tensile Strength: Ultimate (UTS), MPa 590 to 670
940
Tensile Strength: Yield (Proof), MPa 350 to 360
850

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 410
340
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 52
7.1
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.4
38
Embodied Energy, MJ/kg 19
610
Embodied Water, L/kg 49
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 96
83
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 350
3440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 21 to 24
59
Strength to Weight: Bending, points 20 to 22
48
Thermal Diffusivity, mm2/s 14
2.9
Thermal Shock Resistance, points 17 to 20
67