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SAE-AISI M42 Steel vs. ASTM F15 Fe-Ni-Co

Both SAE-AISI M42 steel and ASTM F15 Fe-Ni-Co are iron alloys. They have 62% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is ASTM F15 Fe-Ni-Co.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
520 to 880

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1540
1410
Melting Onset (Solidus), °C 1490
1450
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 20
17
Thermal Expansion, µm/m-K 12
6.0

Otherwise Unclassified Properties

Base Metal Price, % relative 30
49
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 7.4
5.2
Embodied Energy, MJ/kg 100
71
Embodied Water, L/kg 140
190

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 28 to 79
17 to 29
Strength to Weight: Bending, points 24 to 48
17 to 24
Thermal Diffusivity, mm2/s 5.4
4.5
Thermal Shock Resistance, points 25 to 71
32 to 55

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 1.1 to 1.2
0 to 0.040
Chromium (Cr), % 3.5 to 4.3
0 to 0.2
Cobalt (Co), % 7.8 to 8.8
16 to 18
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 76.3 to 81
50.3 to 56
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.15 to 0.4
0 to 0.5
Molybdenum (Mo), % 9.0 to 10
0 to 0.2
Nickel (Ni), % 0 to 0.3
28 to 30
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.65
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0
Zirconium (Zr), % 0
0 to 0.1

Comparable Variants