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SAE-AISI M42 Steel vs. ASTM A148 Cast Steel

Both SAE-AISI M42 steel and ASTM A148 cast steel are iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
630 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1540
1460
Melting Onset (Solidus), °C 1490
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 20
37 to 47
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 30
2.3 to 3.3
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.4
1.5 to 1.7
Embodied Energy, MJ/kg 100
20 to 22
Embodied Water, L/kg 140
48 to 53

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 79
22 to 46
Strength to Weight: Bending, points 24 to 48
21 to 34
Thermal Diffusivity, mm2/s 5.4
9.9 to 13
Thermal Shock Resistance, points 25 to 71
18 to 38

Comparable Variants