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SAE-AISI 4720 Steel vs. S32053 Stainless Steel

Both SAE-AISI 4720 steel and S32053 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 48% 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 SAE-AISI 4720 steel and the bottom bar is S32053 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 25
46
Fatigue Strength, MPa 260
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 310
510
Tensile Strength: Ultimate (UTS), MPa 490
730
Tensile Strength: Yield (Proof), MPa 350
330

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
33
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.6
6.1
Embodied Energy, MJ/kg 21
83
Embodied Water, L/kg 50
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
270
Resilience: Unit (Modulus of Resilience), kJ/m3 330
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 10
3.3
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0.17 to 0.22
0 to 0.030
Chromium (Cr), % 0.35 to 0.55
22 to 24
Iron (Fe), % 96.7 to 97.8
41.7 to 48.8
Manganese (Mn), % 0.5 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
5.0 to 6.0
Nickel (Ni), % 0.9 to 1.2
24 to 26
Nitrogen (N), % 0
0.17 to 0.22
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010