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SAE-AISI 4161 Steel vs. S13800 Stainless Steel

Both SAE-AISI 4161 steel and S13800 stainless steel are iron alloys. They have 77% 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 4161 steel and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
11 to 18
Fatigue Strength, MPa 290
410 to 870
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 420
610 to 1030
Tensile Strength: Ultimate (UTS), MPa 680
980 to 1730
Tensile Strength: Yield (Proof), MPa 410
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
810
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
16
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
3.4
Embodied Energy, MJ/kg 20
46
Embodied Water, L/kg 50
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1090 to 5490
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
35 to 61
Strength to Weight: Bending, points 22
28 to 41
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 22
33 to 58

Alloy Composition

Aluminum (Al), % 0
0.9 to 1.4
Carbon (C), % 0.56 to 0.64
0 to 0.050
Chromium (Cr), % 0.7 to 0.9
12.3 to 13.2
Iron (Fe), % 96.7 to 97.6
73.6 to 77.3
Manganese (Mn), % 0.75 to 1.0
0 to 0.2
Molybdenum (Mo), % 0.25 to 0.35
2.0 to 3.0
Nickel (Ni), % 0
7.5 to 8.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0.15 to 0.35
0 to 0.1
Sulfur (S), % 0 to 0.040
0 to 0.0080