AWS E312 vs. ASTM B541 Gold
AWS E312 belongs to the iron alloys classification, while ASTM B541 gold belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is AWS E312 and the bottom bar is ASTM B541 gold.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 110 |
| Elongation at Break, % | 25 | |
| 6.0 to 14 |
| Poisson's Ratio | 0.27 | |
| 0.4 |
| Shear Modulus, GPa | 80 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 740 | |
| 670 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 90 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1110 |
| Melting Onset (Solidus), °C | 1360 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 170 |
| Thermal Expansion, µm/m-K | 15 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.7 | |
| 17 |
Common Calculations
| Stiffness to Weight: Axial, points | 15 | |
| 3.4 |
| Stiffness to Weight: Bending, points | 25 | |
| 9.0 |
| Strength to Weight: Axial, points | 27 | |
| 11 to 19 |
| Strength to Weight: Bending, points | 24 | |
| 9.8 to 14 |
| Thermal Shock Resistance, points | 18 | |
| 36 to 63 |
Alloy Composition
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| Carbon (C), % | 0 to 0.15 | |
| 0 |
| Chromium (Cr), % | 28 to 32 | |
| 0 |
| Copper (Cu), % | 0 to 0.75 | |
| 13.5 to 15.5 |
| Gold (Au), % | 0 | |
| 70.5 to 72.5 |
| Iron (Fe), % | 52.3 to 63.5 | |
| 0 |
| Manganese (Mn), % | 0.5 to 2.5 | |
| 0 |
| Molybdenum (Mo), % | 0 to 0.75 | |
| 0 |
| Nickel (Ni), % | 8.0 to 10.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Platinum (Pt), % | 0 | |
| 8.0 to 9.0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Silver (Ag), % | 0 | |
| 4.0 to 5.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0.7 to 1.3 |
| Residuals, % | 0 | |
| 0 to 0.4 |