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SAE-AISI M42 Steel vs. EN 1.8505 Steel

Both SAE-AISI M42 steel and EN 1.8505 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 1.8505 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
1050

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1540
1450
Melting Onset (Solidus), °C 1490
1410
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 20
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 30
2.8
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.4
1.6
Embodied Energy, MJ/kg 100
22
Embodied Water, L/kg 140
65

Common Calculations

PREN (Pitting Resistance) 38
2.6
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
37
Strength to Weight: Bending, points 24 to 48
30
Thermal Diffusivity, mm2/s 5.4
11
Thermal Shock Resistance, points 25 to 71
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 1.1 to 1.2
0.28 to 0.35
Chromium (Cr), % 3.5 to 4.3
1.5 to 1.8
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
95.4 to 97.1
Manganese (Mn), % 0.15 to 0.4
0.4 to 0.7
Molybdenum (Mo), % 9.0 to 10
0.2 to 0.4
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 0.65
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0