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SAE-AISI M42 Steel vs. EN 1.4872 Stainless Steel

Both SAE-AISI M42 steel and EN 1.4872 stainless steel are iron alloys. They have 63% 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 1.4872 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
950

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1540
1390
Melting Onset (Solidus), °C 1490
1340
Specific Heat Capacity, J/kg-K 450
490
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 30
17
Density, g/cm3 8.2
7.6
Embodied Carbon, kg CO2/kg material 7.4
3.3
Embodied Energy, MJ/kg 100
47
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 38
30
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 28 to 79
35
Strength to Weight: Bending, points 24 to 48
28
Thermal Diffusivity, mm2/s 5.4
3.9
Thermal Shock Resistance, points 25 to 71
21

Alloy Composition

Carbon (C), % 1.1 to 1.2
0.2 to 0.3
Chromium (Cr), % 3.5 to 4.3
24 to 26
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
54.2 to 61.6
Manganese (Mn), % 0.15 to 0.4
8.0 to 10
Molybdenum (Mo), % 9.0 to 10
0
Nickel (Ni), % 0 to 0.3
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 0.65
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0