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EN 1.8891 Steel vs. SAE-AISI M50 Steel

Both EN 1.8891 steel and SAE-AISI M50 steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.8891 steel and the bottom bar is SAE-AISI M50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 610
720 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
35
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
8.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
10

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
9.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
5.1
Embodied Energy, MJ/kg 24
74
Embodied Water, L/kg 51
83

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
26 to 80
Strength to Weight: Bending, points 20
23 to 49
Thermal Diffusivity, mm2/s 12
9.7
Thermal Shock Resistance, points 18
21 to 66

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0 to 0.2
0.78 to 0.88
Chromium (Cr), % 0 to 0.3
3.8 to 4.5
Copper (Cu), % 0 to 0.7
0 to 0.25
Iron (Fe), % 95.2 to 99
87 to 90.4
Manganese (Mn), % 1.0 to 1.7
0.15 to 0.45
Molybdenum (Mo), % 0 to 0.1
3.9 to 4.8
Nickel (Ni), % 0 to 0.8
0 to 0.3
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.025
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.6
0.2 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.2
0.8 to 1.3