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EN 1.1181 Steel vs. SAE-AISI 50B60 Steel

Both EN 1.1181 steel and SAE-AISI 50B60 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 1.1181 steel and the bottom bar is SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 20
12 to 20
Fatigue Strength, MPa 190 to 260
240 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 350 to 390
380
Tensile Strength: Ultimate (UTS), MPa 560 to 620
610 to 630
Tensile Strength: Yield (Proof), MPa 280 to 380
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
45
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 380
330 to 750
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 22
22 to 23
Strength to Weight: Bending, points 19 to 21
20 to 21
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 19 to 21
20

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.32 to 0.39
0.56 to 0.64
Chromium (Cr), % 0 to 0.4
0.4 to 0.6
Iron (Fe), % 97.4 to 99.18
97.3 to 98.1
Manganese (Mn), % 0.5 to 0.8
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.040