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EN 1.8837 Steel vs. SAE-AISI M42 Steel

Both EN 1.8837 steel and SAE-AISI M42 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 EN 1.8837 steel and the bottom bar is SAE-AISI M42 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1540
Melting Onset (Solidus), °C 1420
1490
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 49
20
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
30
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.6
7.4
Embodied Energy, MJ/kg 21
100
Embodied Water, L/kg 48
140

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0.020 to 0.040
0
Carbon (C), % 0 to 0.16
1.1 to 1.2
Chromium (Cr), % 0
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.6 to 99.98
76.3 to 81
Manganese (Mn), % 0 to 1.7
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.2
9.0 to 10
Nickel (Ni), % 0 to 0.5
0 to 0.3
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.6
0.15 to 0.65
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 0
1.2 to 1.9
Vanadium (V), % 0 to 0.1
1.0 to 1.4