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EN 1.1181 Steel vs. EN 1.0540 Steel

Both EN 1.1181 steel and EN 1.0540 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 EN 1.0540 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 20
14
Fatigue Strength, MPa 190 to 260
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 350 to 390
400
Tensile Strength: Ultimate (UTS), MPa 560 to 620
660
Tensile Strength: Yield (Proof), MPa 280 to 380
330

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
48
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
2.1
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
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
75
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 380
290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 22
23
Strength to Weight: Bending, points 19 to 21
22
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 19 to 21
21

Alloy Composition

Carbon (C), % 0.32 to 0.39
0.47 to 0.55
Chromium (Cr), % 0 to 0.4
0 to 0.4
Iron (Fe), % 97.4 to 99.18
97.2 to 98.9
Manganese (Mn), % 0.5 to 0.8
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.1
0 to 0.1
Nickel (Ni), % 0 to 0.4
0 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.045