ACI-ASTM CB30 Steel vs. SAE-AISI 1090 Steel
Both ACI-ASTM CB30 steel and SAE-AISI 1090 steel are iron alloys. They have 78% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is ACI-ASTM CB30 steel and the bottom bar is SAE-AISI 1090 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 | |
| 220 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 500 | |
| 790 to 950 |
| Tensile Strength: Yield (Proof), MPa | 230 | |
| 520 to 610 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 240 |
| Maximum Temperature: Mechanical, °C | 940 | |
| 400 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1450 |
| Melting Onset (Solidus), °C | 1380 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 21 | |
| 50 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.0 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 1.8 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.3 | |
| 1.4 |
| Embodied Energy, MJ/kg | 33 | |
| 19 |
| Embodied Water, L/kg | 130 | |
| 46 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 | |
| 730 to 1000 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 18 | |
| 28 to 34 |
| Strength to Weight: Bending, points | 18 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 5.6 | |
| 13 |
| Thermal Shock Resistance, points | 17 | |
| 25 to 31 |
Alloy Composition
| Carbon (C), % | 0 to 0.3 | |
| 0.85 to 1.0 |
| Chromium (Cr), % | 18 to 21 | |
| 0 |
| Copper (Cu), % | 0 to 1.2 | |
| 0 |
| Iron (Fe), % | 72.9 to 82 | |
| 98 to 98.6 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.6 to 0.9 |
| Nickel (Ni), % | 0 to 2.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.050 |