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SAE-AISI M42 Steel vs. R04295 Alloy

SAE-AISI M42 steel belongs to the iron alloys classification, while R04295 alloy belongs to the otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 78
37
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
410

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Specific Heat Capacity, J/kg-K 450
260
Thermal Expansion, µm/m-K 12
7.2

Otherwise Unclassified Properties

Density, g/cm3 8.2
9.0
Embodied Water, L/kg 140
950

Common Calculations

Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 28 to 79
13
Strength to Weight: Bending, points 24 to 48
14
Thermal Shock Resistance, points 25 to 71
40

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.015
Chromium (Cr), % 3.5 to 4.3
0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 76.3 to 81
0
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 9.0 to 10
0
Nickel (Ni), % 0 to 0.3
0
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.65
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.7 to 1.3
Tungsten (W), % 1.2 to 1.9
0 to 0.5
Vanadium (V), % 1.0 to 1.4
0
Zirconium (Zr), % 0
0 to 0.7