ACI-ASTM CG8M Steel vs. EN 1.4416 Stainless Steel
Both ACI-ASTM CG8M steel and EN 1.4416 stainless steel are iron alloys. They have 84% of their average alloy composition in common.
For each property being compared, the top bar is ACI-ASTM CG8M steel and the bottom bar is EN 1.4416 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 180 | |
150 |
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Elongation at Break, % | 45 | |
34 |
Fatigue Strength, MPa | 280 | |
170 |
Impact Strength: V-Notched Charpy, J | 110 | |
67 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 79 | |
79 |
Tensile Strength: Ultimate (UTS), MPa | 550 | |
500 |
Tensile Strength: Yield (Proof), MPa | 300 | |
210 |
Thermal Properties
Latent Heat of Fusion, J/g | 300 | |
300 |
Maximum Temperature: Corrosion, °C | 420 | |
420 |
Maximum Temperature: Mechanical, °C | 1020 | |
1100 |
Melting Completion (Liquidus), °C | 1450 | |
1450 |
Melting Onset (Solidus), °C | 1400 | |
1400 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 16 | |
12 |
Thermal Expansion, µm/m-K | 16 | |
15 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
1.7 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.3 | |
1.9 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 20 | |
31 |
Density, g/cm3 | 7.9 | |
8.1 |
Embodied Carbon, kg CO2/kg material | 4.1 | |
5.8 |
Embodied Energy, MJ/kg | 56 | |
79 |
Embodied Water, L/kg | 160 | |
190 |
Common Calculations
PREN (Pitting Resistance) | 31 | |
39 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 210 | |
140 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 220 | |
110 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 19 | |
17 |
Strength to Weight: Bending, points | 19 | |
17 |
Thermal Diffusivity, mm2/s | 4.3 | |
3.2 |
Thermal Shock Resistance, points | 12 | |
12 |
Alloy Composition
Carbon (C), % | 0 to 0.080 | |
0 to 0.030 |
Chromium (Cr), % | 18 to 21 | |
19 to 21 |
Iron (Fe), % | 58.8 to 70 | |
45.2 to 52.4 |
Manganese (Mn), % | 0 to 1.5 | |
0 to 1.0 |
Molybdenum (Mo), % | 3.0 to 4.0 | |
4.5 to 5.5 |
Nickel (Ni), % | 9.0 to 13 | |
24 to 26 |
Nitrogen (N), % | 0 | |
0.12 to 0.2 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.035 |
Silicon (Si), % | 0 to 1.5 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.020 |