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SAE-AISI 4161 Steel vs. EN 1.4592 Stainless Steel

Both SAE-AISI 4161 steel and EN 1.4592 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 67% of their average alloy composition in common. 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 SAE-AISI 4161 steel and the bottom bar is EN 1.4592 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 20
23
Fatigue Strength, MPa 290
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
82
Shear Strength, MPa 420
400
Tensile Strength: Ultimate (UTS), MPa 680
630
Tensile Strength: Yield (Proof), MPa 410
500

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 43
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
18
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.8
Embodied Energy, MJ/kg 20
52
Embodied Water, L/kg 50
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 460
610
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 22
21
Thermal Diffusivity, mm2/s 12
4.6
Thermal Shock Resistance, points 22
20

Alloy Composition

Carbon (C), % 0.56 to 0.64
0 to 0.025
Chromium (Cr), % 0.7 to 0.9
28 to 30
Iron (Fe), % 96.7 to 97.6
62.6 to 68.4
Manganese (Mn), % 0.75 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.25 to 0.35
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.8