EN 1.6750 Steel vs. EN 1.4931 Steel
Both EN 1.6750 steel and EN 1.4931 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have 88% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.6750 steel and the bottom bar is EN 1.4931 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 190 | |
240 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Elongation at Break, % | 18 | |
17 |
Fatigue Strength, MPa | 310 | |
410 |
Impact Strength: V-Notched Charpy, J | 46 | |
30 |
Poisson's Ratio | 0.29 | |
0.28 |
Shear Modulus, GPa | 73 | |
76 |
Tensile Strength: Ultimate (UTS), MPa | 650 | |
810 |
Tensile Strength: Yield (Proof), MPa | 460 | |
620 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
270 |
Maximum Temperature: Mechanical, °C | 420 | |
600 |
Melting Completion (Liquidus), °C | 1460 | |
1460 |
Melting Onset (Solidus), °C | 1420 | |
1420 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 39 | |
24 |
Thermal Expansion, µm/m-K | 13 | |
14 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
9.8 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
11 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 3.3 | |
8.5 |
Density, g/cm3 | 7.9 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.7 | |
2.9 |
Embodied Energy, MJ/kg | 22 | |
42 |
Embodied Water, L/kg | 52 | |
100 |
Common Calculations
PREN (Pitting Resistance) | 2.4 | |
16 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
130 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 | |
970 |
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
25 |
Strength to Weight: Axial, points | 23 | |
29 |
Strength to Weight: Bending, points | 21 | |
25 |
Thermal Diffusivity, mm2/s | 10 | |
6.5 |
Thermal Shock Resistance, points | 19 | |
22 |
Alloy Composition
Carbon (C), % | 0.17 to 0.23 | |
0.2 to 0.26 |
Chromium (Cr), % | 0.3 to 0.5 | |
11.3 to 12.2 |
Iron (Fe), % | 95.3 to 97.5 | |
83.2 to 86.8 |
Manganese (Mn), % | 0.8 to 1.2 | |
0.5 to 0.8 |
Molybdenum (Mo), % | 0.4 to 0.8 | |
1.0 to 1.2 |
Nickel (Ni), % | 0.8 to 1.2 | |
0 to 1.0 |
Phosphorus (P), % | 0 to 0.025 | |
0 to 0.030 |
Silicon (Si), % | 0 to 0.6 | |
0 to 0.4 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.020 |
Tungsten (W), % | 0 | |
0 to 0.5 |
Vanadium (V), % | 0 | |
0.25 to 0.35 |