AWS BAg-21 vs. ACI-ASTM CN3M Steel
AWS BAg-21 belongs to the otherwise unclassified metals classification, while ACI-ASTM CN3M steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is AWS BAg-21 and the bottom bar is ACI-ASTM CN3M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 85 | |
| 200 |
| Poisson's Ratio | 0.36 | |
| 0.28 |
| Shear Modulus, GPa | 31 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 150 | |
| 500 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 310 |
| Melting Completion (Liquidus), °C | 800 | |
| 1450 |
| Melting Onset (Solidus), °C | 690 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 470 |
| Thermal Expansion, µm/m-K | 19 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.8 | |
| 8.1 |
| Embodied Energy, MJ/kg | 970 | |
| 80 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.8 | |
| 14 |
| Stiffness to Weight: Bending, points | 15 | |
| 24 |
| Strength to Weight: Axial, points | 4.2 | |
| 17 |
| Strength to Weight: Bending, points | 6.4 | |
| 17 |
| Thermal Shock Resistance, points | 6.6 | |
| 11 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 20 to 22 |
| Copper (Cu), % | 27.5 to 29.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 42.4 to 52.5 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 4.5 to 5.5 |
| Nickel (Ni), % | 2.0 to 3.0 | |
| 23 to 27 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Silver (Ag), % | 62 to 64 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tin (Sn), % | 5.0 to 7.0 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |