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EN 1.6511 Steel vs. EN 1.6554 Steel

Both EN 1.6511 steel and EN 1.6554 steel are iron alloys. Their average alloy composition is basically identical. 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 EN 1.6511 steel and the bottom bar is EN 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
230 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
17 to 21
Fatigue Strength, MPa 480
380 to 520
Impact Strength: V-Notched Charpy, J 37
30 to 45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 990
780 to 930
Tensile Strength: Yield (Proof), MPa 770
550 to 790

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
420
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 36
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
3.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.7
Embodied Energy, MJ/kg 21
22
Embodied Water, L/kg 53
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 1590
810 to 1650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 35
27 to 33
Strength to Weight: Bending, points 28
24 to 27
Thermal Diffusivity, mm2/s 9.9
11
Thermal Shock Resistance, points 29
23 to 27

Alloy Composition

Carbon (C), % 0.32 to 0.4
0.23 to 0.28
Chromium (Cr), % 0.9 to 1.2
0.7 to 0.9
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 95.6 to 97.2
94.6 to 97.3
Manganese (Mn), % 0.5 to 0.8
0.6 to 0.9
Molybdenum (Mo), % 0.15 to 0.3
0.2 to 0.3
Nickel (Ni), % 0.9 to 1.2
1.0 to 2.0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.035
0 to 0.025
Vanadium (V), % 0
0 to 0.030