ACI-ASTM CE30 Steel vs. ASTM Grade HE Steel
Both ACI-ASTM CE30 steel and ASTM grade HE steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is ACI-ASTM CE30 steel and the bottom bar is ASTM grade HE steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 | |
| 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 11 | |
| 10 |
| Fatigue Strength, MPa | 170 | |
| 160 |
| Poisson's Ratio | 0.27 | |
| 0.27 |
| Shear Modulus, GPa | 79 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 630 | |
| 670 |
| Tensile Strength: Yield (Proof), MPa | 310 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 310 |
| Maximum Temperature: Corrosion, °C | 460 | |
| 450 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1400 |
| Melting Onset (Solidus), °C | 1360 | |
| 1360 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 490 |
| Thermal Conductivity, W/m-K | 14 | |
| 14 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.1 | |
| 2.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.4 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 19 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 3.5 |
| Embodied Energy, MJ/kg | 49 | |
| 50 |
| Embodied Water, L/kg | 180 | |
| 190 |
Common Calculations
| PREN (Pitting Resistance) | 28 | |
| 29 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 59 | |
| 56 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 240 | |
| 240 |
| Stiffness to Weight: Axial, points | 15 | |
| 15 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 23 | |
| 24 |
| Strength to Weight: Bending, points | 21 | |
| 22 |
| Thermal Diffusivity, mm2/s | 3.6 | |
| 3.6 |
| Thermal Shock Resistance, points | 13 | |
| 14 |
Alloy Composition
| Carbon (C), % | 0 to 0.3 | |
| 0.2 to 0.5 |
| Chromium (Cr), % | 26 to 30 | |
| 26 to 30 |
| Iron (Fe), % | 55.1 to 66 | |
| 53.9 to 65.8 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 8.0 to 11 | |
| 8.0 to 11 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 2.0 | |
| 0 to 2.0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.040 |