ASTM A302 Alloy Steel vs. S45503 Stainless Steel
Both ASTM A302 alloy steel and S45503 stainless steel are iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is S45503 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 190 | |
| 410 to 500 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 to 23 | |
| 4.6 to 6.8 |
| Fatigue Strength, MPa | 250 to 280 | |
| 710 to 800 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 75 |
| Shear Strength, MPa | 370 to 390 | |
| 940 to 1070 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 1610 to 1850 |
| Tensile Strength: Yield (Proof), MPa | 350 to 390 | |
| 1430 to 1700 |
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 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
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 | |
| 3.4 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 48 |
| Embodied Water, L/kg | 48 to 50 | |
| 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 82 to 110 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 57 to 65 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 39 to 43 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 56 to 64 |