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SAE-AISI D5 Steel vs. S33550 Stainless Steel

Both SAE-AISI D5 steel and S33550 stainless steel are iron alloys. They have 66% 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 S33550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.4 to 14
40
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
79
Shear Strength, MPa 470 to 1180
470
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
680

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
24
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.5
4.3
Embodied Energy, MJ/kg 51
61
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 15
30
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 73
24
Strength to Weight: Bending, points 24 to 46
22
Thermal Diffusivity, mm2/s 7.4
3.9
Thermal Shock Resistance, points 26 to 67
15

Alloy Composition

Carbon (C), % 1.4 to 1.6
0.040 to 0.1
Cerium (Ce), % 0
0.025 to 0.070
Chromium (Cr), % 11 to 13
25 to 28
Cobalt (Co), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 77.9 to 84.4
48.8 to 58.2
Lanthanum (La), % 0
0.025 to 0.070
Manganese (Mn), % 0 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
16.5 to 20
Niobium (Nb), % 0
0.050 to 0.15
Nitrogen (N), % 0
0.18 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 1.0
0