ASTM A302 Alloy Steel vs. EN 1.4104 Stainless Steel
Both ASTM A302 alloy steel and EN 1.4104 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 1.4104 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 20 to 23 | |
| 11 to 23 |
| Fatigue Strength, MPa | 250 to 280 | |
| 230 to 310 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 370 to 390 | |
| 400 to 450 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 630 to 750 |
| Tensile Strength: Yield (Proof), MPa | 350 to 390 | |
| 350 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 860 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1440 |
| Melting Onset (Solidus), °C | 1420 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 to 51 | |
| 25 |
| Thermal Expansion, µm/m-K | 13 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 to 7.4 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 to 8.4 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 3.0 | |
| 8.5 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.6 | |
| 2.2 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 30 |
| Embodied Water, L/kg | 48 to 50 | |
| 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 77 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 410 | |
| 310 to 800 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 23 to 27 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 21 to 24 |
| Thermal Diffusivity, mm2/s | 10 to 14 | |
| 6.7 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 22 to 27 |