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ASTM A732 Cast Steel vs. ASTM A27 Cast Steel

Both ASTM A732 cast steel and ASTM A27 cast steel are iron alloys. There are 29 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 A732 cast steel and the bottom bar is ASTM A27 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.0 to 25
25 to 27
Fatigue Strength, MPa 230 to 750
170 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72 to 73
73
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
460 to 550
Tensile Strength: Yield (Proof), MPa 310 to 1340
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
250
Maximum Temperature: Mechanical, °C 400 to 430
400
Melting Completion (Liquidus), °C 1440 to 1460
1460
Melting Onset (Solidus), °C 1400 to 1420
1420
Specific Heat Capacity, J/kg-K 470 to 480
470
Thermal Conductivity, W/m-K 39 to 50
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.7
7.0 to 7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
1.8
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
1.4
Embodied Energy, MJ/kg 19 to 24
18
Embodied Water, L/kg 47 to 54
45 to 46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 130
96 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
140 to 260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 52
16 to 20
Strength to Weight: Bending, points 17 to 37
17 to 19
Thermal Diffusivity, mm2/s 10 to 14
14
Thermal Shock Resistance, points 14 to 43
15 to 18