Annealed Nickel 201 vs. Quarter-hard Nickel 201
Both annealed nickel 201 and quarter-hard nickel 201 are variants of the same material. They share alloy composition and many physical properties, but develop different mechanical properties as a result of different processing.
For each property being compared, the top bar is annealed nickel 201 and the bottom bar is quarter-hard nickel 201.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 110 | |
| 150 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 180 |
| Elongation at Break, % | 43 | |
| 17 |
| Fatigue Strength, MPa | 78 | |
| 54 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Shear Modulus, GPa | 70 | |
| 70 |
| Shear Strength, MPa | 270 | |
| 300 |
| Tensile Strength: Ultimate (UTS), MPa | 400 | |
| 480 |
| Tensile Strength: Yield (Proof), MPa | 93 | |
| 100 |
Thermal Properties
| Curie Temperature, °C | 360 | |
| 360 |
| Latent Heat of Fusion, J/g | 290 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 900 | |
| 900 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1450 |
| Melting Onset (Solidus), °C | 1440 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 440 |
| Thermal Conductivity, W/m-K | 78 | |
| 78 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 19 | |
| 19 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 19 | |
| 19 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 65 | |
| 65 |
| Density, g/cm3 | 8.9 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 11 | |
| 11 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 230 | |
| 230 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 60 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 24 | |
| 27 |
| Stiffness to Weight: Axial, points | 11 | |
| 11 |
| Stiffness to Weight: Bending, points | 21 | |
| 21 |
| Strength to Weight: Axial, points | 12 | |
| 15 |
| Strength to Weight: Bending, points | 13 | |
| 15 |
| Thermal Diffusivity, mm2/s | 20 | |
| 20 |
| Thermal Shock Resistance, points | 12 | |
| 14 |
Alloy Composition
| Carbon (C), % | 0 to 0.020 | |
| 0 to 0.020 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 to 0.4 | |
| 0 to 0.4 |
| Manganese (Mn), % | 0 to 0.35 | |
| 0 to 0.35 |
| Nickel (Ni), % | 99 to 100 | |
| 99 to 100 |
| Silicon (Si), % | 0 to 0.35 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.010 |