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ASTM A27 Cast Steel vs. ACI-ASTM CG12 Steel

Both ASTM A27 cast steel and ACI-ASTM CG12 steel 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 A27 cast steel and the bottom bar is ACI-ASTM CG12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25 to 27
40
Fatigue Strength, MPa 170 to 230
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 460 to 550
550
Tensile Strength: Yield (Proof), MPa 230 to 310
220

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1040
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 18
48
Embodied Water, L/kg 45 to 46
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 20
20
Strength to Weight: Bending, points 17 to 19
19
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 15 to 18
12