ASTM A387 Grade 91 Class 2 vs. EN 1.0214 Steel
Both ASTM A387 grade 91 class 2 and EN 1.0214 steel are iron alloys. They have 89% 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 ASTM A387 grade 91 class 2 and the bottom bar is EN 1.0214 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 | |
| 97 to 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 | |
| 12 to 31 |
| Fatigue Strength, MPa | 330 | |
| 160 to 250 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Shear Strength, MPa | 420 | |
| 250 to 290 |
| Tensile Strength: Ultimate (UTS), MPa | 670 | |
| 330 to 460 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 210 to 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 600 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1470 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 26 | |
| 53 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.9 | |
| 6.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
| 7.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.4 |
| Embodied Energy, MJ/kg | 37 | |
| 18 |
| Embodied Water, L/kg | 88 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 34 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 | |
| 120 to 340 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 24 | |
| 12 to 16 |
| Strength to Weight: Bending, points | 22 | |
| 14 to 17 |
| Thermal Diffusivity, mm2/s | 6.9 | |
| 14 |
| Thermal Shock Resistance, points | 19 | |
| 11 to 14 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.020 | |
| 0.020 to 0.060 |
| Carbon (C), % | 0.080 to 0.12 | |
| 0.080 to 0.12 |
| Chromium (Cr), % | 8.0 to 9.5 | |
| 0 |
| Iron (Fe), % | 87.3 to 90.3 | |
| 99.17 to 99.6 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.3 to 0.5 |
| Molybdenum (Mo), % | 0.85 to 1.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 |
| Niobium (Nb), % | 0.060 to 0.1 | |
| 0 |
| Nitrogen (N), % | 0.030 to 0.070 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.025 |
| Silicon (Si), % | 0.2 to 0.5 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.025 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Vanadium (V), % | 0.18 to 0.25 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.010 | |
| 0 |