ASTM A242 HSLA Steel vs. AWS BAg-8a
ASTM A242 HSLA steel belongs to the iron alloys classification, while AWS BAg-8a belongs to the otherwise unclassified metals. There are 15 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 A242 HSLA steel and the bottom bar is AWS BAg-8a.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
83 |
Poisson's Ratio | 0.29 | |
0.36 |
Shear Modulus, GPa | 73 | |
31 |
Tensile Strength: Ultimate (UTS), MPa | 490 | |
150 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
140 |
Melting Completion (Liquidus), °C | 1460 | |
770 |
Melting Onset (Solidus), °C | 1420 | |
770 |
Specific Heat Capacity, J/kg-K | 470 | |
290 |
Thermal Expansion, µm/m-K | 13 | |
19 |
Otherwise Unclassified Properties
Density, g/cm3 | 7.9 | |
10 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
4.6 |
Stiffness to Weight: Bending, points | 24 | |
15 |
Strength to Weight: Axial, points | 17 | |
4.2 |
Strength to Weight: Bending, points | 17 | |
6.3 |
Thermal Shock Resistance, points | 14 | |
6.7 |
Alloy Composition
Carbon (C), % | 0 to 0.15 | |
0 |
Copper (Cu), % | 0.2 to 0.45 | |
26.4 to 28.8 |
Iron (Fe), % | 98.2 to 99.8 | |
0 |
Lithium (Li), % | 0 | |
0.25 to 0.5 |
Manganese (Mn), % | 0 to 1.0 | |
0 |
Phosphorus (P), % | 0 to 0.15 | |
0 |
Silver (Ag), % | 0 | |
71 to 73 |
Sulfur (S), % | 0 to 0.050 | |
0 |
Residuals, % | 0 | |
0 to 0.15 |