MakeItFrom.com
Menu (ESC)

SAE-AISI 5140 Steel vs. S20161 Stainless Steel

Both SAE-AISI 5140 steel and S20161 stainless steel are iron alloys. They have 72% 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 5140 steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 29
46
Fatigue Strength, MPa 220 to 570
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 360 to 600
690
Tensile Strength: Ultimate (UTS), MPa 560 to 970
980
Tensile Strength: Yield (Proof), MPa 290 to 840
390

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
870
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 45
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 49
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
360
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 20 to 34
36
Strength to Weight: Bending, points 19 to 28
29
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 16 to 29
22

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.15
Chromium (Cr), % 0.7 to 0.9
15 to 18
Iron (Fe), % 97.3 to 98.1
65.6 to 73.9
Manganese (Mn), % 0.7 to 0.9
4.0 to 6.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
3.0 to 4.0
Sulfur (S), % 0 to 0.040
0 to 0.040