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SAE-AISI D3 Steel vs. N08320 Stainless Steel

Both SAE-AISI D3 steel and N08320 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D3 steel and the bottom bar is N08320 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.8 to 15
40
Fatigue Strength, MPa 310 to 940
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 470 to 1220
400
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
580
Tensile Strength: Yield (Proof), MPa 480 to 1550
220

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 31
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
28
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.2
4.9
Embodied Energy, MJ/kg 48
69
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 13
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 74
20
Strength to Weight: Bending, points 24 to 47
20
Thermal Diffusivity, mm2/s 8.3
3.3
Thermal Shock Resistance, points 23 to 63
13

Alloy Composition

Carbon (C), % 2.0 to 2.4
0 to 0.050
Chromium (Cr), % 11 to 13.5
21 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
40.4 to 50
Manganese (Mn), % 0 to 0.6
0 to 2.5
Nickel (Ni), % 0 to 0.3
25 to 27
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
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0