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SAE-AISI H24 Steel vs. R05255 Alloy

SAE-AISI H24 steel belongs to the iron alloys classification, while R05255 alloy belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H24 steel and the bottom bar is R05255 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 78
70
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
540

Thermal Properties

Latent Heat of Fusion, J/g 240
140
Specific Heat Capacity, J/kg-K 420
140
Thermal Conductivity, W/m-K 27
59
Thermal Expansion, µm/m-K 12
6.6

Otherwise Unclassified Properties

Density, g/cm3 9.1
17
Embodied Water, L/kg 78
630

Common Calculations

Stiffness to Weight: Axial, points 12
6.3
Stiffness to Weight: Bending, points 22
11
Strength to Weight: Axial, points 22 to 61
9.1
Strength to Weight: Bending, points 20 to 39
8.9
Thermal Diffusivity, mm2/s 6.9
25
Thermal Shock Resistance, points 22 to 61
31

Alloy Composition

Carbon (C), % 0.42 to 0.53
0 to 0.010
Chromium (Cr), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 78 to 82.4
0 to 0.010
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0 to 0.3
0 to 0.010
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
95.9 to 98
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 14 to 16
2.0 to 3.5
Vanadium (V), % 0.4 to 0.6
0