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SAE-AISI M42 Steel vs. EN 1.8879 Steel

Both SAE-AISI M42 steel and EN 1.8879 steel are iron alloys. They have 81% 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 EN 1.8879 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
830

Thermal Properties

Latent Heat of Fusion, J/g 270
260
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
40
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 30
3.7
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.4
1.9
Embodied Energy, MJ/kg 100
26
Embodied Water, L/kg 140
54

Common Calculations

PREN (Pitting Resistance) 38
2.0
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 79
29
Strength to Weight: Bending, points 24 to 48
25
Thermal Diffusivity, mm2/s 5.4
11
Thermal Shock Resistance, points 25 to 71
24

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 1.1 to 1.2
0 to 0.2
Chromium (Cr), % 3.5 to 4.3
0 to 1.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 76.3 to 81
91.9 to 100
Manganese (Mn), % 0.15 to 0.4
0 to 1.7
Molybdenum (Mo), % 9.0 to 10
0 to 0.7
Nickel (Ni), % 0 to 0.3
0 to 2.5
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 0.65
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0 to 0.12
Zirconium (Zr), % 0
0 to 0.15