ASTM A283 Carbon Steel vs. ASTM A387 Grade 21 Steel
Both ASTM A283 carbon steel and ASTM A387 grade 21 steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is ASTM A283 carbon steel and the bottom bar is ASTM A387 grade 21 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 110 to 140 | |
| 150 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 26 to 34 | |
| 21 |
| Fatigue Strength, MPa | 150 to 190 | |
| 160 to 250 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 74 |
| Shear Strength, MPa | 240 to 310 | |
| 310 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 360 to 480 | |
| 500 to 590 |
| Tensile Strength: Yield (Proof), MPa | 180 to 260 | |
| 230 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 480 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1470 |
| Melting Onset (Solidus), °C | 1420 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 to 53 | |
| 41 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 4.1 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.8 |
| Embodied Energy, MJ/kg | 18 | |
| 23 |
| Embodied Water, L/kg | 46 | |
| 62 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 84 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 91 to 180 | |
| 140 to 320 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 13 to 17 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 14 to 17 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 14 | |
| 11 |
| Thermal Shock Resistance, points | 11 to 15 | |
| 14 to 17 |