AISI 321 Stainless Steel vs. ASTM A514 Steel
Both AISI 321 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 AISI 321 stainless steel and the bottom bar is ASTM A514 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 210 | |
| 240 to 250 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 34 to 50 | |
| 18 to 21 |
| Fatigue Strength, MPa | 220 to 270 | |
| 470 to 540 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 420 to 460 | |
| 490 to 520 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 690 | |
| 790 to 830 |
| Tensile Strength: Yield (Proof), MPa | 220 to 350 | |
| 690 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 to 260 |
| Maximum Temperature: Mechanical, °C | 870 | |
| 400 to 440 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 37 to 51 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.2 to 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 8.3 to 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 | |
| 2.3 to 3.8 |
| Density, g/cm3 | 7.8 | |
| 7.8 to 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 1.6 to 1.8 |
| Embodied Energy, MJ/kg | 45 | |
| 21 to 25 |
| Embodied Water, L/kg | 140 | |
| 48 to 57 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 to 230 | |
| 140 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 310 | |
| 1280 to 1590 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 28 to 29 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 24 to 25 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 13 to 15 | |
| 23 to 24 |