ASTM A302 Alloy Steel vs. EN 1.4028 Stainless Steel
Both ASTM A302 alloy steel and EN 1.4028 stainless steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.4028 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 to 23 | |
| 11 to 17 |
| Fatigue Strength, MPa | 250 to 280 | |
| 230 to 400 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 76 |
| Shear Strength, MPa | 370 to 390 | |
| 410 to 550 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 660 to 930 |
| Tensile Strength: Yield (Proof), MPa | 350 to 390 | |
| 390 to 730 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 760 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1440 |
| Melting Onset (Solidus), °C | 1420 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 to 51 | |
| 30 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 to 7.4 | |
| 2.8 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 to 8.4 | |
| 3.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 3.0 | |
| 7.0 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.6 | |
| 1.9 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 27 |
| Embodied Water, L/kg | 48 to 50 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 94 to 96 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 410 | |
| 380 to 1360 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 24 to 33 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 22 to 27 |
| Thermal Diffusivity, mm2/s | 10 to 14 | |
| 8.1 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 23 to 32 |