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EN 1.1181 Steel vs. EN 1.8516 Steel

Both EN 1.1181 steel and EN 1.8516 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 32 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 1.8516 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
330
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 20
11
Fatigue Strength, MPa 190 to 260
570
Impact Strength: V-Notched Charpy, J 23 to 38
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 350 to 390
660
Tensile Strength: Ultimate (UTS), MPa 560 to 620
1100
Tensile Strength: Yield (Proof), MPa 280 to 380
910

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
470
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
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
3.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 47
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 380
2190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 22
39
Strength to Weight: Bending, points 19 to 21
30
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 19 to 21
32

Alloy Composition

Carbon (C), % 0.32 to 0.39
0.2 to 0.27
Chromium (Cr), % 0 to 0.4
3.0 to 3.5
Iron (Fe), % 97.4 to 99.18
94.6 to 96.1
Manganese (Mn), % 0.5 to 0.8
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.1
0.5 to 0.7
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035