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SAE-AISI M42 Steel vs. Grade VDSiCrV Steel

Both SAE-AISI M42 steel and grade VDSiCrV steel are iron alloys. They have 81% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is grade VDSiCrV 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
80
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
2100

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1540
1440
Melting Onset (Solidus), °C 1490
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 20
47
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 30
2.3
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 7.4
1.9
Embodied Energy, MJ/kg 100
26
Embodied Water, L/kg 140
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
75
Strength to Weight: Bending, points 24 to 48
47
Thermal Diffusivity, mm2/s 5.4
13
Thermal Shock Resistance, points 25 to 71
63

Alloy Composition

Carbon (C), % 1.1 to 1.2
0.5 to 0.7
Chromium (Cr), % 3.5 to 4.3
0.5 to 1.0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.060
Iron (Fe), % 76.3 to 81
96.1 to 97.8
Manganese (Mn), % 0.15 to 0.4
0.4 to 0.9
Molybdenum (Mo), % 9.0 to 10
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 0.65
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0.1 to 0.25