ASTM Grade HL Steel vs. ACI-ASTM CG6MMN Steel
Both ASTM grade HL steel and ACI-ASTM CG6MMN steel are iron alloys. They have 84% of their average alloy composition in common.
For each property being compared, the top bar is ASTM grade HL steel and the bottom bar is ACI-ASTM CG6MMN steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 | |
| 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 11 | |
| 34 |
| Fatigue Strength, MPa | 150 | |
| 260 |
| Poisson's Ratio | 0.27 | |
| 0.28 |
| Shear Modulus, GPa | 80 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 500 | |
| 670 |
| Tensile Strength: Yield (Proof), MPa | 270 | |
| 320 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 300 |
| Maximum Temperature: Corrosion, °C | 460 | |
| 460 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 1080 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1420 |
| Melting Onset (Solidus), °C | 1340 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 27 | |
| 22 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.5 | |
| 4.8 |
| Embodied Energy, MJ/kg | 65 | |
| 68 |
| Embodied Water, L/kg | 210 | |
| 180 |
Common Calculations
| PREN (Pitting Resistance) | 31 | |
| 34 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 48 | |
| 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 | |
| 260 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 18 | |
| 24 |
| Strength to Weight: Bending, points | 18 | |
| 22 |
| Thermal Shock Resistance, points | 11 | |
| 14 |
Alloy Composition
| Carbon (C), % | 0.2 to 0.6 | |
| 0 to 0.060 |
| Chromium (Cr), % | 28 to 32 | |
| 20.5 to 23.5 |
| Iron (Fe), % | 40.8 to 53.8 | |
| 51.9 to 62.1 |
| Manganese (Mn), % | 0 to 2.0 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 1.5 to 3.0 |
| Nickel (Ni), % | 18 to 22 | |
| 11.5 to 13.5 |
| Niobium (Nb), % | 0 | |
| 0.1 to 0.3 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 2.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |