ASTM Grade HI Steel vs. ASTM B631 Class B
ASTM grade HI steel belongs to the iron alloys classification, while ASTM B631 class B belongs to the otherwise unclassified metals. 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 ASTM grade HI steel and the bottom bar is ASTM B631 class B.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
210 |
Poisson's Ratio | 0.27 | |
0.31 |
Shear Modulus, GPa | 79 | |
78 to 79 |
Thermal Properties
Latent Heat of Fusion, J/g | 310 | |
150 |
Melting Completion (Liquidus), °C | 1400 | |
2460 to 2480 |
Specific Heat Capacity, J/kg-K | 490 | |
170 |
Thermal Conductivity, W/m-K | 15 | |
450 |
Thermal Expansion, µm/m-K | 17 | |
12 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.1 | |
50 to 53 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.4 | |
32 to 34 |
Otherwise Unclassified Properties
Density, g/cm3 | 7.8 | |
14 |
Embodied Carbon, kg CO2/kg material | 4.1 | |
49 |
Embodied Energy, MJ/kg | 59 | |
760 |
Common Calculations
Stiffness to Weight: Axial, points | 14 | |
8.1 |
Stiffness to Weight: Bending, points | 25 | |
14 |
Thermal Diffusivity, mm2/s | 3.9 | |
190 |