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S44535 Stainless Steel vs. SAE-AISI 8660 Steel

Both S44535 stainless steel and SAE-AISI 8660 steel are iron alloys. They have 78% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S44535 stainless steel and the bottom bar is SAE-AISI 8660 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
12
Fatigue Strength, MPa 210
340
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 290
390
Tensile Strength: Ultimate (UTS), MPa 450
660
Tensile Strength: Yield (Proof), MPa 290
550

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
410
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 21
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.5
Embodied Energy, MJ/kg 34
20
Embodied Water, L/kg 140
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
73
Resilience: Unit (Modulus of Resilience), kJ/m3 200
800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
23
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 5.6
10
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0 to 0.030
0.56 to 0.64
Chromium (Cr), % 20 to 24
0.4 to 0.6
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 73.2 to 79.6
96.4 to 97.6
Lanthanum (La), % 0.040 to 0.2
0
Manganese (Mn), % 0.3 to 0.8
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0
0.4 to 0.7
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0.030 to 0.2
0