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ASTM A27 Cast Steel vs. SAE-AISI D4 Steel

Both ASTM A27 cast steel and SAE-AISI D4 steel are iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25 to 27
8.4 to 15
Fatigue Strength, MPa 170 to 230
310 to 920
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 460 to 550
760 to 2060
Tensile Strength: Yield (Proof), MPa 230 to 310
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
31
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
5.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
8.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 18
49
Embodied Water, L/kg 45 to 46
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
100 to 160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 20
27 to 75
Strength to Weight: Bending, points 17 to 19
24 to 47
Thermal Diffusivity, mm2/s 14
8.3
Thermal Shock Resistance, points 15 to 18
23 to 63