EN 1.7729 Steel vs. EN 1.1132 Steel
Both EN 1.7729 steel and EN 1.1132 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 (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.7729 steel and the bottom bar is EN 1.1132 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 270 | |
| 110 to 140 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 17 | |
| 12 to 24 |
| Fatigue Strength, MPa | 500 | |
| 180 to 280 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Reduction in Area, % | 56 | |
| 63 to 73 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 560 | |
| 260 to 310 |
| Tensile Strength: Ultimate (UTS), MPa | 910 | |
| 370 to 490 |
| Tensile Strength: Yield (Proof), MPa | 750 | |
| 240 to 400 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 430 | |
| 400 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1460 |
| Melting Onset (Solidus), °C | 1430 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 40 | |
| 51 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.8 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 1.4 |
| Embodied Energy, MJ/kg | 49 | |
| 18 |
| Embodied Water, L/kg | 59 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 | |
| 38 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1500 | |
| 160 to 430 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 32 | |
| 13 to 17 |
| Strength to Weight: Bending, points | 27 | |
| 15 to 18 |
| Thermal Diffusivity, mm2/s | 11 | |
| 14 |
| Thermal Shock Resistance, points | 27 | |
| 12 to 16 |
Alloy Composition
| Aluminum (Al), % | 0.015 to 0.080 | |
| 0 |
| Arsenic (As), % | 0 to 0.020 | |
| 0 |
| Boron (B), % | 0.0010 to 0.010 | |
| 0 |
| Carbon (C), % | 0.17 to 0.23 | |
| 0.13 to 0.17 |
| Chromium (Cr), % | 0.9 to 1.2 | |
| 0 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 to 0.25 |
| Iron (Fe), % | 94.8 to 97 | |
| 98.6 to 99.57 |
| Manganese (Mn), % | 0.35 to 0.75 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.3 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |
| Tin (Sn), % | 0 to 0.020 | |
| 0 |
| Titanium (Ti), % | 0.070 to 0.15 | |
| 0 |
| Vanadium (V), % | 0.6 to 0.8 | |
| 0 |