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SAE-AISI D5 Steel vs. S32808 Stainless Steel

Both SAE-AISI D5 steel and S32808 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D5 steel and the bottom bar is S32808 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 5.4 to 14
17
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
81
Shear Strength, MPa 470 to 1180
480
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
780

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
14
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
24
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.5
4.0
Embodied Energy, MJ/kg 51
57
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 15
40
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 73
27
Strength to Weight: Bending, points 24 to 46
24
Thermal Diffusivity, mm2/s 7.4
3.8
Thermal Shock Resistance, points 26 to 67
21

Alloy Composition

Carbon (C), % 1.4 to 1.6
0 to 0.030
Chromium (Cr), % 11 to 13
27 to 27.9
Cobalt (Co), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 77.9 to 84.4
58.1 to 62.8
Manganese (Mn), % 0 to 0.6
0 to 1.1
Molybdenum (Mo), % 0.7 to 1.2
0.8 to 1.2
Nickel (Ni), % 0 to 0.3
7.0 to 8.2
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 0
2.1 to 2.5
Vanadium (V), % 0 to 1.0
0