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ASTM A732 Cast Steel vs. R30556 Alloy

Both ASTM A732 cast steel and R30556 alloy are 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 ASTM A732 cast steel and the bottom bar is R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 4.0 to 25
45
Fatigue Strength, MPa 230 to 750
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72 to 73
81
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
780
Tensile Strength: Yield (Proof), MPa 310 to 1340
350

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
300
Maximum Temperature: Mechanical, °C 400 to 430
1100
Melting Completion (Liquidus), °C 1440 to 1460
1420
Melting Onset (Solidus), °C 1400 to 1420
1330
Specific Heat Capacity, J/kg-K 470 to 480
450
Thermal Conductivity, W/m-K 39 to 50
11
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.7
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
70
Density, g/cm3 7.8 to 7.9
8.4
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
8.7
Embodied Energy, MJ/kg 19 to 24
130
Embodied Water, L/kg 47 to 54
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 130
290
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 16 to 52
26
Strength to Weight: Bending, points 17 to 37
22
Thermal Diffusivity, mm2/s 10 to 14
2.9
Thermal Shock Resistance, points 14 to 43
18