ASTM A302 Alloy Steel vs. S17400 Stainless Steel
Both ASTM A302 alloy steel and S17400 stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is S17400 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 190 | |
| 280 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 to 23 | |
| 11 to 21 |
| Fatigue Strength, MPa | 250 to 280 | |
| 380 to 670 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 75 |
| Shear Strength, MPa | 370 to 390 | |
| 570 to 830 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 910 to 1390 |
| Tensile Strength: Yield (Proof), MPa | 350 to 390 | |
| 580 to 1250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 850 |
| 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 | |
| 17 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 to 7.4 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 to 8.4 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 3.0 | |
| 14 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.6 | |
| 2.7 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 39 |
| Embodied Water, L/kg | 48 to 50 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 140 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 410 | |
| 880 to 4060 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 32 to 49 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 27 to 35 |
| Thermal Diffusivity, mm2/s | 10 to 14 | |
| 4.5 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 30 to 46 |