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EN 1.7711 Steel vs. SAE-AISI 4161 Steel

Both EN 1.7711 steel and SAE-AISI 4161 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.7711 steel and the bottom bar is SAE-AISI 4161 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 280
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 22
20
Fatigue Strength, MPa 290 to 520
290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 440 to 570
420
Tensile Strength: Ultimate (UTS), MPa 690 to 930
680
Tensile Strength: Yield (Proof), MPa 400 to 800
410

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 33
43
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.5
Embodied Energy, MJ/kg 32
20
Embodied Water, L/kg 54
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 140
120
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1690
460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 33
24
Strength to Weight: Bending, points 22 to 27
22
Thermal Diffusivity, mm2/s 8.9
12
Thermal Shock Resistance, points 24 to 32
22

Alloy Composition

Aluminum (Al), % 0 to 0.015
0
Carbon (C), % 0.36 to 0.44
0.56 to 0.64
Chromium (Cr), % 0.9 to 1.2
0.7 to 0.9
Iron (Fe), % 96 to 97.5
96.7 to 97.6
Manganese (Mn), % 0.45 to 0.85
0.75 to 1.0
Molybdenum (Mo), % 0.5 to 0.65
0.25 to 0.35
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0.25 to 0.35
0