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ASTM A27 Cast Steel vs. SAE-AISI 1055 Steel

Both ASTM A27 cast steel and SAE-AISI 1055 steel are iron 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 A27 cast steel and the bottom bar is SAE-AISI 1055 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25 to 27
11 to 14
Fatigue Strength, MPa 170 to 230
260 to 390
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 40
34 to 45
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 460 to 550
730 to 750
Tensile Strength: Yield (Proof), MPa 230 to 310
400 to 630

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
12

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
80 to 85
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
440 to 1070
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
26
Strength to Weight: Bending, points 17 to 19
23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15 to 18
23 to 24