ASTM A372 Grade J Steel vs. SAE-AISI 1548 Steel
Both ASTM A372 grade J steel and SAE-AISI 1548 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is ASTM A372 grade J steel and the bottom bar is SAE-AISI 1548 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 to 310 | |
220 to 250 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 17 to 22 | |
11 to 16 |
Fatigue Strength, MPa | 310 to 570 | |
270 to 430 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
72 |
Shear Strength, MPa | 410 to 630 | |
440 to 500 |
Tensile Strength: Ultimate (UTS), MPa | 650 to 1020 | |
730 to 830 |
Tensile Strength: Yield (Proof), MPa | 430 to 850 | |
420 to 690 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Maximum Temperature: Mechanical, °C | 420 | |
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 | 44 | |
51 |
Thermal Expansion, µm/m-K | 13 | |
12 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
7.1 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
8.1 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.4 | |
1.8 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
1.4 |
Embodied Energy, MJ/kg | 20 | |
19 |
Embodied Water, L/kg | 51 | |
47 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 170 | |
79 to 99 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 500 to 1930 | |
470 to 1280 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 23 to 36 | |
26 to 30 |
Strength to Weight: Bending, points | 21 to 29 | |
23 to 25 |
Thermal Diffusivity, mm2/s | 12 | |
14 |
Thermal Shock Resistance, points | 19 to 30 | |
23 to 27 |
Alloy Composition
Carbon (C), % | 0.35 to 0.5 | |
0.44 to 0.52 |
Chromium (Cr), % | 0.8 to 1.2 | |
0 |
Iron (Fe), % | 96.7 to 97.8 | |
98 to 98.5 |
Manganese (Mn), % | 0.75 to 1.1 | |
1.1 to 1.4 |
Molybdenum (Mo), % | 0.15 to 0.25 | |
0 |
Phosphorus (P), % | 0 to 0.015 | |
0 to 0.040 |
Silicon (Si), % | 0.15 to 0.35 | |
0 |
Sulfur (S), % | 0 to 0.010 | |
0 to 0.050 |