ASTM B631 Class C vs. S31727 Stainless Steel
ASTM B631 class C belongs to the otherwise unclassified metals classification, while S31727 stainless steel belongs to the iron alloys. There are 13 material properties with values for both materials. Properties with values for just one material (22, in this case) are not shown.
For each property being compared, the top bar is ASTM B631 class C and the bottom bar is S31727 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 to 190 | |
| 200 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Rockwell B Hardness | 43 to 68 | |
| 83 |
| Shear Modulus, GPa | 66 to 71 | |
| 78 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 to 150 | |
| 290 |
| Melting Completion (Liquidus), °C | 2090 to 2230 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 180 | |
| 470 |
| Thermal Expansion, µm/m-K | 14 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 to 14 | |
| 8.0 |
| Embodied Carbon, kg CO2/kg material | 55 to 59 | |
| 4.7 |
| Embodied Energy, MJ/kg | 860 to 920 | |
| 64 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.4 to 7.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 14 | |
| 24 |