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EN 1.6750 Steel vs. EN 1.6511 Steel

Both EN 1.6750 steel and EN 1.6511 steel are iron alloys. Both are furnished in the quenched and tempered condition. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6750 steel and the bottom bar is EN 1.6511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
12
Fatigue Strength, MPa 310
480
Impact Strength: V-Notched Charpy, J 46
37
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 650
990
Tensile Strength: Yield (Proof), MPa 460
770

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
430
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
36
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
3.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.6
Embodied Energy, MJ/kg 22
21
Embodied Water, L/kg 52
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 570
1590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
35
Strength to Weight: Bending, points 21
28
Thermal Diffusivity, mm2/s 10
9.9
Thermal Shock Resistance, points 19
29

Alloy Composition

Carbon (C), % 0.17 to 0.23
0.32 to 0.4
Chromium (Cr), % 0.3 to 0.5
0.9 to 1.2
Iron (Fe), % 95.3 to 97.5
95.6 to 97.2
Manganese (Mn), % 0.8 to 1.2
0.5 to 0.8
Molybdenum (Mo), % 0.4 to 0.8
0.15 to 0.3
Nickel (Ni), % 0.8 to 1.2
0.9 to 1.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035