AISI 304 Stainless Steel vs. ASTM A209 Steel
Both AISI 304 stainless steel and ASTM A209 steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is AISI 304 stainless steel and the bottom bar is ASTM A209 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 360 | |
| 140 to 150 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 8.0 to 43 | |
| 34 |
| Fatigue Strength, MPa | 210 to 440 | |
| 180 to 200 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 400 to 690 | |
| 280 to 310 |
| Tensile Strength: Ultimate (UTS), MPa | 580 to 1180 | |
| 420 to 460 |
| Tensile Strength: Yield (Proof), MPa | 230 to 860 | |
| 220 to 250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 710 | |
| 410 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1470 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 to 1430 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 50 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 8.1 to 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 2.4 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 1.5 |
| Embodied Energy, MJ/kg | 43 | |
| 20 |
| Embodied Water, L/kg | 150 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 to 250 | |
| 120 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 1870 | |
| 130 to 170 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 42 | |
| 15 to 16 |
| Strength to Weight: Bending, points | 20 to 32 | |
| 16 to 17 |
| Thermal Diffusivity, mm2/s | 4.2 | |
| 13 |
| Thermal Shock Resistance, points | 12 to 25 | |
| 12 to 14 |