Half-hard AISI 304 vs. Half-hard AISI 304N
Both half-hard AISI 304 and half-hard AISI 304N are iron alloys. Both are furnished in the half-hard temper. Their average alloy composition is basically identical. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is half-hard AISI 304 and the bottom bar is half-hard AISI 304N.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 360 | |
| 360 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 8.0 | |
| 9.1 |
| Fatigue Strength, MPa | 440 | |
| 440 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 690 | |
| 700 |
| Tensile Strength: Ultimate (UTS), MPa | 1180 | |
| 1180 |
| Tensile Strength: Yield (Proof), MPa | 860 | |
| 850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 420 | |
| 420 |
| Maximum Temperature: Mechanical, °C | 710 | |
| 960 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1420 |
| Melting Onset (Solidus), °C | 1400 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 16 | |
| 16 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 15 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 3.0 |
| Embodied Energy, MJ/kg | 43 | |
| 43 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 21 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 | |
| 98 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1870 | |
| 1830 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 42 | |
| 42 |
| Strength to Weight: Bending, points | 32 | |
| 32 |
| Thermal Diffusivity, mm2/s | 4.2 | |
| 4.2 |
| Thermal Shock Resistance, points | 25 | |
| 26 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.080 |
| Chromium (Cr), % | 18 to 20 | |
| 18 to 20 |
| Iron (Fe), % | 66.5 to 74 | |
| 66.4 to 73.9 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 8.0 to 10.5 | |
| 8.0 to 10.5 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0.1 to 0.16 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |