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SAE-AISI 4161 Steel vs. EN 1.5508 Steel

Both SAE-AISI 4161 steel and EN 1.5508 steel are iron alloys. They have a very high 98% of their average alloy composition in common. 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 SAE-AISI 4161 steel and the bottom bar is EN 1.5508 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
130 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
11 to 20
Fatigue Strength, MPa 290
210 to 320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 420
300 to 360
Tensile Strength: Ultimate (UTS), MPa 680
420 to 1460
Tensile Strength: Yield (Proof), MPa 410
310 to 490

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
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
51
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 50
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
44 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 460
260 to 640
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
15 to 52
Strength to Weight: Bending, points 22
16 to 36
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 22
12 to 43

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.56 to 0.64
0.2 to 0.25
Chromium (Cr), % 0.7 to 0.9
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.7 to 97.6
97.9 to 99.199
Manganese (Mn), % 0.75 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0.25 to 0.35
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.3
Sulfur (S), % 0 to 0.040
0 to 0.025