SAE-AISI 4024 Steel vs. ASTM A242 HSLA Steel
Both SAE-AISI 4024 steel and ASTM A242 HSLA steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is SAE-AISI 4024 steel and the bottom bar is ASTM A242 HSLA steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 180 | |
150 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 14 | |
22 |
Fatigue Strength, MPa | 320 | |
230 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
73 |
Shear Strength, MPa | 370 | |
310 |
Tensile Strength: Ultimate (UTS), MPa | 600 | |
490 |
Tensile Strength: Yield (Proof), MPa | 500 | |
330 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Maximum Temperature: Mechanical, °C | 400 | |
400 |
Melting Completion (Liquidus), °C | 1460 | |
1460 |
Melting Onset (Solidus), °C | 1420 | |
1420 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 51 | |
52 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
7.1 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
8.1 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.1 | |
1.9 |
Density, g/cm3 | 7.8 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
1.4 |
Embodied Energy, MJ/kg | 19 | |
18 |
Embodied Water, L/kg | 47 | |
46 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 | |
95 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 670 | |
290 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 21 | |
17 |
Strength to Weight: Bending, points | 20 | |
17 |
Thermal Diffusivity, mm2/s | 14 | |
14 |
Thermal Shock Resistance, points | 18 | |
14 |
Alloy Composition
Carbon (C), % | 0.2 to 0.25 | |
0 to 0.15 |
Copper (Cu), % | 0 | |
0.2 to 0.45 |
Iron (Fe), % | 98.1 to 98.7 | |
98.2 to 99.8 |
Manganese (Mn), % | 0.7 to 0.9 | |
0 to 1.0 |
Molybdenum (Mo), % | 0.2 to 0.3 | |
0 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.15 |
Silicon (Si), % | 0.15 to 0.35 | |
0 |
Sulfur (S), % | 0.035 to 0.050 | |
0 to 0.050 |