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ASTM A572 Steel vs. Grade 11 Titanium

ASTM A572 steel belongs to the iron alloys classification, while grade 11 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 A572 steel and the bottom bar is grade 11 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 190
120
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 18 to 25
29
Fatigue Strength, MPa 240 to 340
170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
38
Shear Strength, MPa 300 to 380
200
Tensile Strength: Ultimate (UTS), MPa 470 to 620
310
Tensile Strength: Yield (Proof), MPa 330 to 510
230

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 400
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 51
22
Thermal Expansion, µm/m-K 13
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.6
47
Embodied Energy, MJ/kg 22
800
Embodied Water, L/kg 47
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
81
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 690
240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 17 to 22
19
Strength to Weight: Bending, points 17 to 21
22
Thermal Diffusivity, mm2/s 14
8.9
Thermal Shock Resistance, points 14 to 18
22