EN 1.4006 +QT550 Steel vs. EN 1.4006 +QT650 Steel
Both EN 1.4006 +QT550 steel and EN 1.4006 +QT650 steel are variants of the same material. They share alloy composition and many physical properties, but develop different mechanical properties as a result of different processing. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is EN 1.4006 +QT550 steel and the bottom bar is EN 1.4006 +QT650 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 17 | |
16 |
Fatigue Strength, MPa | 280 | |
300 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 76 | |
76 |
Shear Strength, MPa | 400 | |
460 |
Tensile Strength: Ultimate (UTS), MPa | 650 | |
750 |
Tensile Strength: Yield (Proof), MPa | 450 | |
510 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
270 |
Maximum Temperature: Corrosion, °C | 390 | |
390 |
Maximum Temperature: Mechanical, °C | 740 | |
740 |
Melting Completion (Liquidus), °C | 1440 | |
1440 |
Melting Onset (Solidus), °C | 1400 | |
1400 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Conductivity, W/m-K | 30 | |
30 |
Thermal Expansion, µm/m-K | 11 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
2.9 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
3.3 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 7.0 | |
7.0 |
Density, g/cm3 | 7.7 | |
7.7 |
Embodied Carbon, kg CO2/kg material | 1.9 | |
1.9 |
Embodied Energy, MJ/kg | 27 | |
27 |
Embodied Water, L/kg | 100 | |
100 |
Common Calculations
PREN (Pitting Resistance) | 13 | |
13 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 99 | |
100 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 530 | |
660 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 23 | |
27 |
Strength to Weight: Bending, points | 22 | |
24 |
Thermal Diffusivity, mm2/s | 8.1 | |
8.1 |
Thermal Shock Resistance, points | 23 | |
26 |
Alloy Composition
Carbon (C), % | 0.080 to 0.15 | |
0.080 to 0.15 |
Chromium (Cr), % | 11.5 to 13.5 | |
11.5 to 13.5 |
Iron (Fe), % | 83.1 to 88.4 | |
83.1 to 88.4 |
Manganese (Mn), % | 0 to 1.5 | |
0 to 1.5 |
Nickel (Ni), % | 0 to 0.75 | |
0 to 0.75 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.040 |
Silicon (Si), % | 0 to 1.0 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.015 |