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S42300 Stainless Steel vs. SAE-AISI 4820 Steel

Both S42300 stainless steel and SAE-AISI 4820 steel are iron alloys. They have 85% 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 S42300 stainless steel and the bottom bar is SAE-AISI 4820 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.1
21
Fatigue Strength, MPa 440
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 650
360
Tensile Strength: Ultimate (UTS), MPa 1100
570
Tensile Strength: Yield (Proof), MPa 850
370

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 750
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
51
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 5.2
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.3
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.2
1.8
Embodied Energy, MJ/kg 44
24
Embodied Water, L/kg 110
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1840
370
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 39
20
Strength to Weight: Bending, points 30
19
Thermal Diffusivity, mm2/s 6.8
14
Thermal Shock Resistance, points 40
19

Alloy Composition

Carbon (C), % 0.27 to 0.32
0.18 to 0.23
Chromium (Cr), % 11 to 12
0
Iron (Fe), % 82 to 85.1
94.6 to 95.7
Manganese (Mn), % 1.0 to 1.4
0.5 to 0.7
Molybdenum (Mo), % 2.5 to 3.0
0.2 to 0.3
Nickel (Ni), % 0 to 0.5
3.3 to 3.8
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040
Vanadium (V), % 0.2 to 0.3
0