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S42300 Stainless Steel vs. SAE-AISI 8660 Steel

Both S42300 stainless steel and SAE-AISI 8660 steel are iron alloys. They have 86% 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 8660 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.1
12
Fatigue Strength, MPa 440
340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 650
390
Tensile Strength: Ultimate (UTS), MPa 1100
660
Tensile Strength: Yield (Proof), MPa 850
550

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 750
410
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.5
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 5.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.5
Embodied Energy, MJ/kg 44
20
Embodied Water, L/kg 110
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
73
Resilience: Unit (Modulus of Resilience), kJ/m3 1840
800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 39
23
Strength to Weight: Bending, points 30
21
Thermal Diffusivity, mm2/s 6.8
10
Thermal Shock Resistance, points 40
19

Alloy Composition

Carbon (C), % 0.27 to 0.32
0.56 to 0.64
Chromium (Cr), % 11 to 12
0.4 to 0.6
Iron (Fe), % 82 to 85.1
96.4 to 97.6
Manganese (Mn), % 1.0 to 1.4
0.75 to 1.0
Molybdenum (Mo), % 2.5 to 3.0
0.15 to 0.25
Nickel (Ni), % 0 to 0.5
0.4 to 0.7
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