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SAE-AISI M42 Steel vs. EN 1.4587 Stainless Steel

Both SAE-AISI M42 steel and EN 1.4587 stainless steel are iron alloys. They have 47% 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 1.4587 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
80
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
540

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1540
1420
Melting Onset (Solidus), °C 1490
1370
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 20
17
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 30
36
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 7.4
6.3
Embodied Energy, MJ/kg 100
87
Embodied Water, L/kg 140
230

Common Calculations

PREN (Pitting Resistance) 38
43
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 79
18
Strength to Weight: Bending, points 24 to 48
18
Thermal Diffusivity, mm2/s 5.4
4.5
Thermal Shock Resistance, points 25 to 71
13

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.030
Chromium (Cr), % 3.5 to 4.3
24 to 26
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
2.0 to 3.0
Iron (Fe), % 76.3 to 81
32.7 to 41.9
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 9.0 to 10
4.0 to 5.0
Nickel (Ni), % 0 to 0.3
28 to 30
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.15 to 0.65
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0