Annealed SAE-AISI H26 vs. Annealed SAE-AISI H43
Both annealed SAE-AISI H26 and annealed SAE-AISI H43 are iron alloys. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common.
For each property being compared, the top bar is annealed SAE-AISI H26 and the bottom bar is annealed SAE-AISI H43.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 | |
| 210 | 
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 200 | 
| Poisson's Ratio | 0.29 | |
| 0.29 | 
| Shear Modulus, GPa | 80 | |
| 77 | 
| Tensile Strength: Ultimate (UTS), MPa | 720 | |
| 710 | 
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 270 | 
| Melting Completion (Liquidus), °C | 1810 | |
| 1530 | 
| Melting Onset (Solidus), °C | 1760 | |
| 1480 | 
| Specific Heat Capacity, J/kg-K | 410 | |
| 460 | 
| Thermal Conductivity, W/m-K | 22 | |
| 30 | 
| Thermal Expansion, µm/m-K | 12 | |
| 12 | 
Otherwise Unclassified Properties
| Base Metal Price, % relative | 45 | |
| 14 | 
| Density, g/cm3 | 9.3 | |
| 7.9 | 
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 8.2 | 
| Embodied Energy, MJ/kg | 120 | |
| 120 | 
| Embodied Water, L/kg | 90 | |
| 100 | 
Common Calculations
| PREN (Pitting Resistance) | 34 | |
| 31 | 
| Stiffness to Weight: Axial, points | 12 | |
| 14 | 
| Stiffness to Weight: Bending, points | 21 | |
| 24 | 
| Strength to Weight: Axial, points | 22 | |
| 25 | 
| Strength to Weight: Bending, points | 19 | |
| 22 | 
| Thermal Diffusivity, mm2/s | 5.6 | |
| 8.3 | 
| Thermal Shock Resistance, points | 22 | |
| 21 | 
Alloy Composition
| Carbon (C), % | 0.45 to 0.55 | |
| 0.5 to 0.65 | 
| Chromium (Cr), % | 3.8 to 4.5 | |
| 3.8 to 4.5 | 
| Copper (Cu), % | 0 to 0.25 | |
| 0 | 
| Iron (Fe), % | 73.3 to 77.5 | |
| 83.2 to 85.9 | 
| Manganese (Mn), % | 0.15 to 0.4 | |
| 0.15 to 0.4 | 
| Molybdenum (Mo), % | 0 | |
| 7.8 to 8.5 | 
| Nickel (Ni), % | 0 to 0.3 | |
| 0 | 
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.030 | 
| Silicon (Si), % | 0.15 to 0.4 | |
| 0.2 to 0.45 | 
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 | 
| Tungsten (W), % | 17.3 to 19 | |
| 0 | 
| Vanadium (V), % | 0.75 to 1.3 | |
| 1.8 to 2.2 |