EN 1.3558 Steel vs. EN 1.7709 Steel
Both EN 1.3558 steel and EN 1.7709 steel are iron alloys. They have 78% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.3558 steel and the bottom bar is EN 1.7709 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 230 | |
200 to 230 |
Elastic (Young's, Tensile) Modulus, GPa | 210 | |
190 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 80 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 770 | |
650 to 780 |
Thermal Properties
Latent Heat of Fusion, J/g | 240 | |
250 |
Maximum Temperature: Mechanical, °C | 490 | |
440 |
Melting Completion (Liquidus), °C | 1810 | |
1470 |
Melting Onset (Solidus), °C | 1760 | |
1420 |
Specific Heat Capacity, J/kg-K | 410 | |
470 |
Thermal Conductivity, W/m-K | 20 | |
33 |
Thermal Expansion, µm/m-K | 12 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 13 | |
7.5 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 12 | |
8.6 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 45 | |
3.4 |
Density, g/cm3 | 9.3 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 8.4 | |
2.3 |
Embodied Energy, MJ/kg | 130 | |
32 |
Embodied Water, L/kg | 90 | |
56 |
Common Calculations
PREN (Pitting Resistance) | 35 | |
3.6 |
Stiffness to Weight: Axial, points | 12 | |
13 |
Stiffness to Weight: Bending, points | 21 | |
24 |
Strength to Weight: Axial, points | 23 | |
23 to 27 |
Strength to Weight: Bending, points | 20 | |
21 to 24 |
Thermal Diffusivity, mm2/s | 5.3 | |
8.9 |
Thermal Shock Resistance, points | 22 | |
22 to 26 |
Alloy Composition
Aluminum (Al), % | 0 | |
0 to 0.030 |
Carbon (C), % | 0.7 to 0.8 | |
0.17 to 0.25 |
Chromium (Cr), % | 3.9 to 4.3 | |
1.2 to 1.5 |
Copper (Cu), % | 0 to 0.3 | |
0 |
Iron (Fe), % | 73.7 to 77.6 | |
95.2 to 97.5 |
Manganese (Mn), % | 0 to 0.4 | |
0.4 to 0.8 |
Molybdenum (Mo), % | 0 to 0.6 | |
0.55 to 0.8 |
Nickel (Ni), % | 0 | |
0 to 0.6 |
Phosphorus (P), % | 0 to 0.025 | |
0 to 0.025 |
Silicon (Si), % | 0 to 0.4 | |
0 to 0.4 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.030 |
Tungsten (W), % | 17.5 to 19 | |
0 |
Vanadium (V), % | 1.0 to 1.3 | |
0.2 to 0.35 |