S21904 Stainless Steel vs. ASTM A514 Steel
Both S21904 stainless steel and ASTM A514 steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is S21904 stainless steel and the bottom bar is ASTM A514 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 300 | |
| 240 to 250 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 17 to 51 | |
| 18 to 21 |
| Fatigue Strength, MPa | 380 to 550 | |
| 470 to 540 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Shear Strength, MPa | 510 to 620 | |
| 490 to 520 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 1000 | |
| 790 to 830 |
| Tensile Strength: Yield (Proof), MPa | 390 to 910 | |
| 690 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 to 260 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 400 to 440 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1460 |
| Melting Onset (Solidus), °C | 1350 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 14 | |
| 37 to 51 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 7.2 to 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.3 to 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 2.3 to 3.8 |
| Density, g/cm3 | 7.7 | |
| 7.8 to 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 1.6 to 1.8 |
| Embodied Energy, MJ/kg | 43 | |
| 21 to 25 |
| Embodied Water, L/kg | 160 | |
| 48 to 57 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 160 to 310 | |
| 140 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 2070 | |
| 1280 to 1590 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 25 to 36 | |
| 28 to 29 |
| Strength to Weight: Bending, points | 23 to 29 | |
| 24 to 25 |
| Thermal Diffusivity, mm2/s | 3.8 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 15 to 21 | |
| 23 to 24 |