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ASTM A27 Cast Steel vs. SAE-AISI 4130 Steel

Both ASTM A27 cast steel and SAE-AISI 4130 steel are iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 4130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25 to 27
13 to 26
Fatigue Strength, MPa 170 to 230
320 to 660
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 460 to 550
530 to 1040
Tensile Strength: Yield (Proof), MPa 230 to 310
440 to 980

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
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
43
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 45 to 46
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
83 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
500 to 2550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
19 to 37
Strength to Weight: Bending, points 17 to 19
19 to 29
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 15 to 18
16 to 31