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S35045 Stainless Steel vs. SAE-AISI 8620 Steel

Both S35045 stainless steel and SAE-AISI 8620 steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 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 S35045 stainless steel and the bottom bar is SAE-AISI 8620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
13 to 31
Fatigue Strength, MPa 170
270 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 370
340 to 420
Tensile Strength: Ultimate (UTS), MPa 540
520 to 690
Tensile Strength: Yield (Proof), MPa 190
360 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.6
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.8
1.5
Embodied Energy, MJ/kg 83
20
Embodied Water, L/kg 230
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
86 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 94
340 to 880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
18 to 24
Strength to Weight: Bending, points 19
18 to 22
Thermal Diffusivity, mm2/s 3.2
10
Thermal Shock Resistance, points 12
15 to 20

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0.060 to 0.1
0.18 to 0.23
Chromium (Cr), % 25 to 29
0.4 to 0.6
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 29.4 to 42.6
96.9 to 98
Manganese (Mn), % 0 to 1.5
0.7 to 0.9
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 32 to 37
0.4 to 0.7
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040
Titanium (Ti), % 0.15 to 0.6
0