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S32053 Stainless Steel vs. SAE-AISI 4820 Steel

Both S32053 stainless steel and SAE-AISI 4820 steel are iron alloys. Both are furnished in the annealed condition. They have 50% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S32053 stainless steel and the bottom bar is SAE-AISI 4820 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 46
21
Fatigue Strength, MPa 310
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 510
360
Tensile Strength: Ultimate (UTS), MPa 730
570
Tensile Strength: Yield (Proof), MPa 330
370

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
51
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 33
4.3
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.1
1.8
Embodied Energy, MJ/kg 83
24
Embodied Water, L/kg 210
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110
Resilience: Unit (Modulus of Resilience), kJ/m3 270
370
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
20
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 3.3
14
Thermal Shock Resistance, points 16
19

Alloy Composition

Carbon (C), % 0 to 0.030
0.18 to 0.23
Chromium (Cr), % 22 to 24
0
Iron (Fe), % 41.7 to 48.8
94.6 to 95.7
Manganese (Mn), % 0 to 1.0
0.5 to 0.7
Molybdenum (Mo), % 5.0 to 6.0
0.2 to 0.3
Nickel (Ni), % 24 to 26
3.3 to 3.8
Nitrogen (N), % 0.17 to 0.22
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040