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SAE-AISI M42 Steel vs. ASTM A182 Grade F24

Both SAE-AISI M42 steel and ASTM A182 grade F24 are iron alloys. They have 83% of their average alloy composition in common. There are 22 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 A182 grade F24.

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
74
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
670

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1540
1470
Melting Onset (Solidus), °C 1490
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 20
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 30
4.0
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.4
2.3
Embodied Energy, MJ/kg 100
33
Embodied Water, L/kg 140
61

Common Calculations

PREN (Pitting Resistance) 38
6.7
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 79
24
Strength to Weight: Bending, points 24 to 48
22
Thermal Diffusivity, mm2/s 5.4
11
Thermal Shock Resistance, points 25 to 71
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 1.1 to 1.2
0.050 to 0.1
Chromium (Cr), % 3.5 to 4.3
2.2 to 2.6
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
94.5 to 96.1
Manganese (Mn), % 0.15 to 0.4
0.3 to 0.7
Molybdenum (Mo), % 9.0 to 10
0.9 to 1.1
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.12
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 0.65
0.15 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.060 to 0.1
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0.2 to 0.3