ASTM A302 Alloy Steel vs. EN 1.4594 Stainless Steel
Both ASTM A302 alloy steel and EN 1.4594 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 1.4594 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 20 to 23 | |
| 11 to 17 |
| Fatigue Strength, MPa | 250 to 280 | |
| 490 to 620 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 76 |
| Shear Strength, MPa | 370 to 390 | |
| 620 to 700 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 1020 to 1170 |
| Tensile Strength: Yield (Proof), MPa | 350 to 390 | |
| 810 to 1140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 820 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 39 to 51 | |
| 16 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 to 7.4 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 to 8.4 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 3.0 | |
| 15 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.6 | |
| 3.2 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 45 |
| Embodied Water, L/kg | 48 to 50 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 110 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 410 | |
| 1660 to 3320 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 36 to 41 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 29 to 31 |
| Thermal Diffusivity, mm2/s | 10 to 14 | |
| 4.4 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 34 to 39 |