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SAE-AISI M42 Steel vs. EN 1.8872 Steel

Both SAE-AISI M42 steel and EN 1.8872 steel are iron alloys. They have 80% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is EN 1.8872 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
610

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
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 30
2.8
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 7.4
1.7
Embodied Energy, MJ/kg 100
22
Embodied Water, L/kg 140
50

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
Strength to Weight: Bending, points 24 to 48
20
Thermal Diffusivity, mm2/s 5.4
10
Thermal Shock Resistance, points 25 to 71
18

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 1.1 to 1.2
0 to 0.18
Chromium (Cr), % 3.5 to 4.3
0 to 0.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 76.3 to 81
95.1 to 100
Manganese (Mn), % 0.15 to 0.4
0 to 1.7
Molybdenum (Mo), % 9.0 to 10
0 to 0.5
Nickel (Ni), % 0 to 0.3
0 to 1.0
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 0.65
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0080
Titanium (Ti), % 0
0 to 0.030
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0 to 0.080
Zirconium (Zr), % 0
0 to 0.050