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SAE-AISI 4161 Steel vs. EN 1.6956 Steel

Both SAE-AISI 4161 steel and EN 1.6956 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 1.6956 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
370
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
9.6
Fatigue Strength, MPa 290
680
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 420
730
Tensile Strength: Ultimate (UTS), MPa 680
1230
Tensile Strength: Yield (Proof), MPa 410
1120

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
440
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
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
2.2
Embodied Energy, MJ/kg 20
31
Embodied Water, L/kg 50
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
3320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
43
Strength to Weight: Bending, points 22
32
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 22
36

Alloy Composition

Carbon (C), % 0.56 to 0.64
0.28 to 0.38
Chromium (Cr), % 0.7 to 0.9
1.0 to 1.7
Iron (Fe), % 96.7 to 97.6
92.4 to 95.3
Manganese (Mn), % 0.75 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0.25 to 0.35
0.3 to 0.6
Nickel (Ni), % 0
2.9 to 3.8
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035
Vanadium (V), % 0
0.080 to 0.25