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ASTM A732 Cast Steel vs. Grade 6 Titanium

ASTM A732 cast steel belongs to the iron alloys classification, while grade 6 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 A732 cast steel and the bottom bar is grade 6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 4.0 to 25
11
Fatigue Strength, MPa 230 to 750
290
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72 to 73
39
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
890
Tensile Strength: Yield (Proof), MPa 310 to 1340
840

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
410
Maximum Temperature: Mechanical, °C 400 to 430
310
Melting Completion (Liquidus), °C 1440 to 1460
1580
Melting Onset (Solidus), °C 1400 to 1420
1530
Specific Heat Capacity, J/kg-K 470 to 480
550
Thermal Conductivity, W/m-K 39 to 50
7.8
Thermal Expansion, µm/m-K 13
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.7
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
36
Density, g/cm3 7.8 to 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
30
Embodied Energy, MJ/kg 19 to 24
480
Embodied Water, L/kg 47 to 54
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 130
92
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
3390
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 16 to 52
55
Strength to Weight: Bending, points 17 to 37
46
Thermal Diffusivity, mm2/s 10 to 14
3.2
Thermal Shock Resistance, points 14 to 43
65