EN 1.1191 Steel vs. ASTM A372 Grade M Steel
Both EN 1.1191 steel and ASTM A372 grade M steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.1191 steel and the bottom bar is ASTM A372 grade M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 200 | |
| 240 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 16 to 17 | |
| 18 to 21 |
| Fatigue Strength, MPa | 210 to 290 | |
| 450 to 520 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 73 |
| Shear Strength, MPa | 380 to 430 | |
| 510 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 630 to 700 | |
| 810 to 910 |
| Tensile Strength: Yield (Proof), MPa | 310 to 440 | |
| 660 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 450 |
| 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 | 48 | |
| 46 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 9.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 5.0 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 2.0 |
| Embodied Energy, MJ/kg | 19 | |
| 27 |
| Embodied Water, L/kg | 47 | |
| 61 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 100 | |
| 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 510 | |
| 1140 to 1580 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 22 to 25 | |
| 29 to 32 |
| Strength to Weight: Bending, points | 21 to 22 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 13 | |
| 12 |
| Thermal Shock Resistance, points | 20 to 22 | |
| 24 to 27 |
Alloy Composition
| Carbon (C), % | 0.42 to 0.5 | |
| 0 to 0.23 |
| Chromium (Cr), % | 0 to 0.4 | |
| 1.5 to 2.0 |
| Iron (Fe), % | 97.3 to 99.08 | |
| 92.5 to 95.1 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 0.2 to 0.4 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0.4 to 0.6 |
| Nickel (Ni), % | 0 to 0.4 | |
| 2.8 to 3.9 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.3 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.010 |
| Vanadium (V), % | 0 | |
| 0 to 0.080 |