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SAE-AISI D3 Steel vs. S32520 Stainless Steel

Both SAE-AISI D3 steel and S32520 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D3 steel and the bottom bar is S32520 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.8 to 15
28
Fatigue Strength, MPa 310 to 940
460
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 74
80
Shear Strength, MPa 470 to 1220
560
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
860
Tensile Strength: Yield (Proof), MPa 480 to 1550
630

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 31
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.2
4.0
Embodied Energy, MJ/kg 48
55
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 13
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 74
31
Strength to Weight: Bending, points 24 to 47
26
Thermal Diffusivity, mm2/s 8.3
4.1
Thermal Shock Resistance, points 23 to 63
24

Alloy Composition

Carbon (C), % 2.0 to 2.4
0 to 0.030
Chromium (Cr), % 11 to 13.5
24 to 26
Copper (Cu), % 0 to 0.25
0.5 to 2.0
Iron (Fe), % 80.3 to 87
57.3 to 66.8
Manganese (Mn), % 0 to 0.6
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.3
5.5 to 8.0
Nitrogen (N), % 0
0.2 to 0.35
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0