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SAE-AISI 4161 Steel vs. EN 1.7366 Steel

Both SAE-AISI 4161 steel and EN 1.7366 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
140 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
17 to 19
Fatigue Strength, MPa 290
160 to 320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 420
290 to 440
Tensile Strength: Ultimate (UTS), MPa 680
460 to 710
Tensile Strength: Yield (Proof), MPa 410
230 to 480

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
510
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 20
23
Embodied Water, L/kg 50
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
74 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
140 to 600
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
16 to 25
Strength to Weight: Bending, points 22
17 to 23
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 22
13 to 20

Alloy Composition

Carbon (C), % 0.56 to 0.64
0 to 0.18
Chromium (Cr), % 0.7 to 0.9
4.0 to 6.0
Iron (Fe), % 96.7 to 97.6
91.9 to 95.3
Manganese (Mn), % 0.75 to 1.0
0.3 to 0.8
Molybdenum (Mo), % 0.25 to 0.35
0.45 to 0.65
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.015