Annealed ASTM B541 vs. Annealed SAE-AISI H21
Annealed ASTM B541 belongs to the otherwise unclassified metals classification, while annealed SAE-AISI H21 belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is annealed ASTM B541 and the bottom bar is annealed SAE-AISI H21.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Poisson's Ratio | 0.4 | |
| 0.29 |
| Shear Modulus, GPa | 38 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 670 | |
| 720 |
Thermal Properties
| Latent Heat of Fusion, J/g | 90 | |
| 250 |
| Melting Completion (Liquidus), °C | 1110 | |
| 1630 |
| Melting Onset (Solidus), °C | 930 | |
| 1580 |
| Specific Heat Capacity, J/kg-K | 170 | |
| 440 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.4 | |
| 13 |
| Stiffness to Weight: Bending, points | 9.0 | |
| 23 |
| Strength to Weight: Axial, points | 11 | |
| 23 |
| Strength to Weight: Bending, points | 9.8 | |
| 21 |
| Thermal Shock Resistance, points | 36 | |
| 24 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0.28 to 0.36 |
| Chromium (Cr), % | 0 | |
| 3.0 to 3.8 |
| Copper (Cu), % | 13.5 to 15.5 | |
| 0 to 0.25 |
| Gold (Au), % | 70.5 to 72.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 87.6 to 93.8 |
| Manganese (Mn), % | 0 | |
| 0.15 to 0.4 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Platinum (Pt), % | 8.0 to 9.0 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.5 |
| Silver (Ag), % | 4.0 to 5.0 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 8.5 to 10 |
| Vanadium (V), % | 0 | |
| 0.3 to 0.6 |
| Zinc (Zn), % | 0.7 to 1.3 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |