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SAE-AISI A9 Steel vs. R60802 Alloy

SAE-AISI A9 steel belongs to the iron alloys classification, while R60802 alloy belongs to the otherwise unclassified metals. There are 16 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 A9 steel and the bottom bar is R60802 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 74
36
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
430

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 35
22
Thermal Expansion, µm/m-K 12
6.0

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.5
Embodied Water, L/kg 82
290

Common Calculations

Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 28 to 73
18
Strength to Weight: Bending, points 24 to 46
19
Thermal Diffusivity, mm2/s 9.6
12
Thermal Shock Resistance, points 25 to 66
53

Alloy Composition


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Carbon (C), % 0.45 to 0.55
0
Chromium (Cr), % 4.8 to 5.5
0.050 to 0.15
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87 to 90.5
0.070 to 0.2
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 1.3 to 1.8
0
Nickel (Ni), % 1.3 to 1.8
0.030 to 0.080
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.0 to 1.2
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
1.2 to 1.7
Vanadium (V), % 0.8 to 1.4
0
Zirconium (Zr), % 0
97.8 to 98.7
Residuals, % 0
0 to 0.11