ASTM A302 Alloy Steel vs. EN 1.7139 Steel
Both ASTM A302 alloy steel and EN 1.7139 steel are iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is EN 1.7139 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 190 | |
| 150 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 480 to 1390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 420 |
| 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 | 39 to 51 | |
| 44 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 to 7.4 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 to 8.4 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 3.0 | |
| 2.2 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.6 | |
| 1.4 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 19 |
| Embodied Water, L/kg | 48 to 50 | |
| 51 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 17 to 49 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 17 to 35 |
| Thermal Diffusivity, mm2/s | 10 to 14 | |
| 12 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 14 to 41 |