ASTM A283 Carbon Steel vs. ASTM A302 Alloy Steel
Both ASTM A283 carbon steel and ASTM A302 alloy steel are iron alloys.
For each property being compared, the top bar is ASTM A283 carbon steel and the bottom bar is ASTM A302 alloy steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 110 to 140 | |
| 180 to 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 26 to 34 | |
| 20 to 23 |
| Fatigue Strength, MPa | 150 to 190 | |
| 250 to 280 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 240 to 310 | |
| 370 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 360 to 480 | |
| 590 to 620 |
| Tensile Strength: Yield (Proof), MPa | 180 to 260 | |
| 350 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 410 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 to 53 | |
| 39 to 51 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 7.2 to 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 8.2 to 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 2.4 to 3.0 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.8 to 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.5 to 1.6 |
| Embodied Energy, MJ/kg | 18 | |
| 20 to 21 |
| Embodied Water, L/kg | 46 | |
| 48 to 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 91 to 180 | |
| 330 to 410 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 13 to 17 | |
| 21 to 22 |
| Strength to Weight: Bending, points | 14 to 17 | |
| 20 to 21 |
| Thermal Diffusivity, mm2/s | 14 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 11 to 15 | |
| 17 to 18 |