ACI-ASTM CN7M Steel vs. EN 1.6580 Steel
Both ACI-ASTM CN7M steel and EN 1.6580 steel are iron alloys. They have 48% of their average alloy composition in common. There are 31 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 ACI-ASTM CN7M steel and the bottom bar is EN 1.6580 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 140 | |
220 to 350 |
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
190 |
Elongation at Break, % | 44 | |
11 to 19 |
Fatigue Strength, MPa | 190 | |
310 to 610 |
Poisson's Ratio | 0.28 | |
0.29 |
Shear Modulus, GPa | 77 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 480 | |
720 to 1170 |
Tensile Strength: Yield (Proof), MPa | 200 | |
460 to 990 |
Thermal Properties
Latent Heat of Fusion, J/g | 310 | |
250 |
Maximum Temperature: Mechanical, °C | 1100 | |
450 |
Melting Completion (Liquidus), °C | 1410 | |
1460 |
Melting Onset (Solidus), °C | 1450 | |
1420 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 21 | |
40 |
Thermal Expansion, µm/m-K | 15 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 1.6 | |
7.8 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
8.9 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 32 | |
4.3 |
Density, g/cm3 | 8.1 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 5.6 | |
1.8 |
Embodied Energy, MJ/kg | 78 | |
23 |
Embodied Water, L/kg | 210 | |
59 |
Common Calculations
PREN (Pitting Resistance) | 29 | |
3.3 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 170 | |
120 to 130 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 | |
560 to 2590 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 17 | |
26 to 41 |
Strength to Weight: Bending, points | 17 | |
23 to 31 |
Thermal Diffusivity, mm2/s | 5.6 | |
11 |
Thermal Shock Resistance, points | 12 | |
21 to 34 |
Alloy Composition
Carbon (C), % | 0 to 0.070 | |
0.26 to 0.34 |
Chromium (Cr), % | 19 to 22 | |
1.8 to 2.2 |
Copper (Cu), % | 3.0 to 4.0 | |
0 |
Iron (Fe), % | 37.4 to 48.5 | |
93.7 to 95.5 |
Manganese (Mn), % | 0 to 1.5 | |
0.3 to 0.6 |
Molybdenum (Mo), % | 2.0 to 3.0 | |
0.3 to 0.5 |
Nickel (Ni), % | 27.5 to 30.5 | |
1.8 to 2.2 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.035 |
Silicon (Si), % | 0 to 1.5 | |
0 to 0.4 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.035 |