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SAE-AISI 4161 Steel vs. EN 1.7710 Steel

Both SAE-AISI 4161 steel and EN 1.7710 steel are iron alloys. They have a very high 98% 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 1.7710 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
280 to 320
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
6.8 to 11
Fatigue Strength, MPa 290
500 to 620
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 680
930 to 1070
Tensile Strength: Yield (Proof), MPa 410
800 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
41
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
3.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.2
Embodied Energy, MJ/kg 20
30
Embodied Water, L/kg 50
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
73 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1680 to 2970
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
33 to 38
Strength to Weight: Bending, points 22
27 to 30
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 22
27 to 31

Alloy Composition

Carbon (C), % 0.56 to 0.64
0.12 to 0.18
Chromium (Cr), % 0.7 to 0.9
1.3 to 1.8
Iron (Fe), % 96.7 to 97.6
95.1 to 97
Manganese (Mn), % 0.75 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 0.25 to 0.35
0.8 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0.15 to 0.25