EN 1.4418 Stainless Steel vs. ACI-ASTM CG8M Steel
Both EN 1.4418 stainless steel and ACI-ASTM CG8M steel are iron alloys. They have 88% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.4418 stainless steel and the bottom bar is ACI-ASTM CG8M steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Elongation at Break, % | 16 to 20 | |
45 |
Fatigue Strength, MPa | 350 to 480 | |
280 |
Impact Strength: V-Notched Charpy, J | 62 to 90 | |
110 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 77 | |
79 |
Tensile Strength: Ultimate (UTS), MPa | 860 to 1000 | |
550 |
Tensile Strength: Yield (Proof), MPa | 540 to 790 | |
300 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
300 |
Maximum Temperature: Corrosion, °C | 410 | |
420 |
Maximum Temperature: Mechanical, °C | 870 | |
1020 |
Melting Completion (Liquidus), °C | 1450 | |
1450 |
Melting Onset (Solidus), °C | 1400 | |
1400 |
Specific Heat Capacity, J/kg-K | 480 | |
470 |
Thermal Conductivity, W/m-K | 15 | |
16 |
Thermal Expansion, µm/m-K | 10 | |
16 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
2.0 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
2.3 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 13 | |
20 |
Density, g/cm3 | 7.8 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 2.8 | |
4.1 |
Embodied Energy, MJ/kg | 39 | |
56 |
Embodied Water, L/kg | 130 | |
160 |
Common Calculations
PREN (Pitting Resistance) | 20 | |
31 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 170 | |
210 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 730 to 1590 | |
220 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 31 to 36 | |
19 |
Strength to Weight: Bending, points | 26 to 28 | |
19 |
Thermal Diffusivity, mm2/s | 4.0 | |
4.3 |
Thermal Shock Resistance, points | 31 to 36 | |
12 |
Alloy Composition
Carbon (C), % | 0 to 0.060 | |
0 to 0.080 |
Chromium (Cr), % | 15 to 17 | |
18 to 21 |
Iron (Fe), % | 73.2 to 80.2 | |
58.8 to 70 |
Manganese (Mn), % | 0 to 1.5 | |
0 to 1.5 |
Molybdenum (Mo), % | 0.8 to 1.5 | |
3.0 to 4.0 |
Nickel (Ni), % | 4.0 to 6.0 | |
9.0 to 13 |
Nitrogen (N), % | 0 to 0.020 | |
0 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.040 |
Silicon (Si), % | 0 to 0.7 | |
0 to 1.5 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.040 |