ASTM A387 Grade 22 Steel vs. SAE-AISI 8620 Steel
Both ASTM A387 grade 22 steel and SAE-AISI 8620 steel are iron alloys. They have a very high 97% 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 A387 grade 22 steel and the bottom bar is SAE-AISI 8620 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 180 | |
| 150 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 21 | |
| 13 to 31 |
| Fatigue Strength, MPa | 160 to 240 | |
| 270 to 360 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 74 | |
| 73 |
| Shear Strength, MPa | 300 to 380 | |
| 340 to 420 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 600 | |
| 520 to 690 |
| Tensile Strength: Yield (Proof), MPa | 230 to 350 | |
| 360 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 460 | |
| 410 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1460 |
| Melting Onset (Solidus), °C | 1430 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 40 | |
| 39 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.8 | |
| 2.6 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.7 | |
| 1.5 |
| Embodied Energy, MJ/kg | 23 | |
| 20 |
| Embodied Water, L/kg | 58 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 85 to 110 | |
| 86 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 320 | |
| 340 to 880 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 21 | |
| 18 to 24 |
| Strength to Weight: Bending, points | 17 to 20 | |
| 18 to 22 |
| Thermal Diffusivity, mm2/s | 11 | |
| 10 |
| Thermal Shock Resistance, points | 14 to 17 | |
| 15 to 20 |
Alloy Composition
| Carbon (C), % | 0.050 to 0.15 | |
| 0.18 to 0.23 |
| Chromium (Cr), % | 2.0 to 2.5 | |
| 0.4 to 0.6 |
| Iron (Fe), % | 95.1 to 96.8 | |
| 96.9 to 98 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.7 to 0.9 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0.15 to 0.25 |
| Nickel (Ni), % | 0 | |
| 0.4 to 0.7 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.040 |