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EN 1.6511 Steel vs. EN 1.8516 Steel

Both EN 1.6511 steel and EN 1.8516 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a very high 98% of their average alloy composition in common. There are 32 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 1.8516 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
330
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
11
Fatigue Strength, MPa 480
570
Impact Strength: V-Notched Charpy, J 37
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 600
660
Tensile Strength: Ultimate (UTS), MPa 990
1100
Tensile Strength: Yield (Proof), MPa 770
910

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
470
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
39
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
3.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.7
Embodied Energy, MJ/kg 21
22
Embodied Water, L/kg 53
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1590
2190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 35
39
Strength to Weight: Bending, points 28
30
Thermal Diffusivity, mm2/s 9.9
10
Thermal Shock Resistance, points 29
32

Alloy Composition

Carbon (C), % 0.32 to 0.4
0.2 to 0.27
Chromium (Cr), % 0.9 to 1.2
3.0 to 3.5
Iron (Fe), % 95.6 to 97.2
94.6 to 96.1
Manganese (Mn), % 0.5 to 0.8
0.4 to 0.7
Molybdenum (Mo), % 0.15 to 0.3
0.5 to 0.7
Nickel (Ni), % 0.9 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035