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EN 1.1181 Steel vs. EN 1.0920 Steel

Both EN 1.1181 steel and EN 1.0920 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.1181 steel and the bottom bar is EN 1.0920 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 20
23
Fatigue Strength, MPa 190 to 260
270
Impact Strength: V-Notched Charpy, J 23 to 38
40
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350 to 390
340
Tensile Strength: Ultimate (UTS), MPa 560 to 620
540
Tensile Strength: Yield (Proof), MPa 280 to 380
380

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
50
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 47
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 380
380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 22
19
Strength to Weight: Bending, points 19 to 21
19
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 19 to 21
17

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0.32 to 0.39
0 to 0.2
Chromium (Cr), % 0 to 0.4
0 to 0.3
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 97.4 to 99.18
96.1 to 99.08
Manganese (Mn), % 0.5 to 0.8
0.9 to 1.7
Molybdenum (Mo), % 0 to 0.1
0 to 0.1
Nickel (Ni), % 0 to 0.4
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.12