ASTM A302 Alloy Steel vs. EN 1.4020 Stainless Steel
Both ASTM A302 alloy steel and EN 1.4020 stainless steel are iron alloys. There are 27 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 1.4020 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 190 | |
| 190 to 340 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 20 to 23 | |
| 13 to 34 |
| Fatigue Strength, MPa | 250 to 280 | |
| 340 to 540 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 370 to 390 | |
| 510 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 770 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 350 to 390 | |
| 430 to 950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 890 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1390 |
| Melting Onset (Solidus), °C | 1420 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 3.0 | |
| 11 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.6 | |
| 2.5 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 37 |
| Embodied Water, L/kg | 48 to 50 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 140 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 410 | |
| 460 to 2290 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 25 to 32 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 16 to 23 |