EN 1.1181 Steel vs. EN 1.8915 Steel
Both EN 1.1181 steel and EN 1.8915 steel are iron alloys. They have a very high 98% 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 1.8915 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 | |
19 |
Fatigue Strength, MPa | 190 to 260 | |
340 |
Impact Strength: V-Notched Charpy, J | 23 to 38 | |
79 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
73 |
Shear Strength, MPa | 350 to 390 | |
400 |
Tensile Strength: Ultimate (UTS), MPa | 560 to 620 | |
640 |
Tensile Strength: Yield (Proof), MPa | 280 to 380 | |
490 |
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 | |
46 |
Thermal Expansion, µm/m-K | 11 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
7.5 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
8.6 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.1 | |
2.5 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.4 | |
1.7 |
Embodied Energy, MJ/kg | 19 | |
24 |
Embodied Water, L/kg | 47 | |
51 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 90 to 110 | |
110 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 380 | |
640 |
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 | |
21 |
Thermal Diffusivity, mm2/s | 11 | |
12 |
Thermal Shock Resistance, points | 19 to 21 | |
19 |
Alloy Composition
Aluminum (Al), % | 0 | |
0.020 to 0.050 |
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 0.7 |
Iron (Fe), % | 97.4 to 99.18 | |
95.2 to 98.9 |
Manganese (Mn), % | 0.5 to 0.8 | |
1.1 to 1.7 |
Molybdenum (Mo), % | 0 to 0.1 | |
0 to 0.1 |
Nickel (Ni), % | 0 to 0.4 | |
0 to 0.8 |
Niobium (Nb), % | 0 | |
0 to 0.050 |
Nitrogen (N), % | 0 | |
0 to 0.025 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.025 |
Silicon (Si), % | 0 to 0.4 | |
0 to 0.6 |
Sulfur (S), % | 0 to 0.035 | |
0 to 0.0080 |
Titanium (Ti), % | 0 | |
0 to 0.030 |
Vanadium (V), % | 0 | |
0 to 0.2 |