Half-hard AISI 201 vs. Half-hard AISI 316N
Both half-hard AISI 201 and half-hard AISI 316N are iron alloys. Both are furnished in the half-hard temper. They have 90% of their average alloy composition in common.
For each property being compared, the top bar is half-hard AISI 201 and the bottom bar is half-hard AISI 316N.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 360 | |
| 350 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 21 | |
| 9.0 |
| Fatigue Strength, MPa | 550 | |
| 450 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 78 |
| Shear Strength, MPa | 740 | |
| 690 |
| Tensile Strength: Ultimate (UTS), MPa | 1180 | |
| 1160 |
| Tensile Strength: Yield (Proof), MPa | 850 | |
| 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 940 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1440 |
| Melting Onset (Solidus), °C | 1370 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 15 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 19 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.9 |
| Embodied Energy, MJ/kg | 38 | |
| 53 |
| Embodied Water, L/kg | 140 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 27 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 220 | |
| 95 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1840 | |
| 1880 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 43 | |
| 41 |
| Strength to Weight: Bending, points | 32 | |
| 31 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.1 |
| Thermal Shock Resistance, points | 26 | |
| 26 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.080 |
| Chromium (Cr), % | 16 to 18 | |
| 16 to 18 |
| Iron (Fe), % | 67.5 to 75 | |
| 61.9 to 71.9 |
| Manganese (Mn), % | 5.5 to 7.5 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 10 to 14 |
| Nitrogen (N), % | 0 to 0.25 | |
| 0.1 to 0.16 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |