EN 1.4618 Stainless Steel vs. SAE-AISI 8630 Steel
Both EN 1.4618 stainless steel and SAE-AISI 8630 steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4618 stainless steel and the bottom bar is SAE-AISI 8630 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 210 | |
| 160 to 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 51 | |
| 12 to 24 |
| Fatigue Strength, MPa | 240 to 250 | |
| 260 to 350 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 480 to 500 | |
| 340 to 410 |
| Tensile Strength: Ultimate (UTS), MPa | 680 to 700 | |
| 540 to 680 |
| Tensile Strength: Yield (Proof), MPa | 250 to 260 | |
| 360 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 900 | |
| 410 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1460 |
| Melting Onset (Solidus), °C | 1360 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 39 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 2.6 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 1.5 |
| Embodied Energy, MJ/kg | 39 | |
| 20 |
| Embodied Water, L/kg | 150 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 270 to 280 | |
| 78 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 170 | |
| 340 to 840 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 24 to 25 | |
| 19 to 24 |
| Strength to Weight: Bending, points | 22 to 23 | |
| 19 to 22 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 10 |
| Thermal Shock Resistance, points | 15 to 16 | |
| 18 to 23 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0.28 to 0.33 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 0.4 to 0.6 |
| Copper (Cu), % | 1.0 to 2.5 | |
| 0 |
| Iron (Fe), % | 62.7 to 72.5 | |
| 96.8 to 97.9 |
| Manganese (Mn), % | 5.5 to 9.5 | |
| 0.7 to 0.9 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.25 |
| Nickel (Ni), % | 4.5 to 5.5 | |
| 0.4 to 0.7 |
| Nitrogen (N), % | 0 to 0.15 | |
| 0 |
| Phosphorus (P), % | 0 to 0.070 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.040 |