ASTM B631 Class A vs. K94200 Alloy
ASTM B631 class A belongs to the otherwise unclassified metals classification, while K94200 alloy belongs to the iron alloys. There are 12 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is ASTM B631 class A and the bottom bar is K94200 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 | |
| 140 |
| Poisson's Ratio | 0.3 | |
| 0.34 |
| Shear Modulus, GPa | 85 to 86 | |
| 54 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 160 | |
| 500 |
| Thermal Conductivity, W/m-K | 420 | |
| 15 |
| Thermal Expansion, µm/m-K | 11 | |
| 5.0 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 40 to 47 | |
| 2.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 25 to 29 | |
| 3.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 15 | |
| 8.2 |
Common Calculations
| Stiffness to Weight: Axial, points | 8.5 | |
| 9.8 |
| Stiffness to Weight: Bending, points | 14 | |
| 21 |
| Thermal Diffusivity, mm2/s | 180 | |
| 3.7 |