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EN 1.6511 Steel vs. EN 1.8818 Steel

Both EN 1.6511 steel and EN 1.8818 steel are iron alloys. 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 (1, 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 1.8818 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
27
Fatigue Strength, MPa 480
200
Impact Strength: V-Notched Charpy, J 37
48
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 600
280
Tensile Strength: Ultimate (UTS), MPa 990
440
Tensile Strength: Yield (Proof), MPa 770
270

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
400
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
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 21
21
Embodied Water, L/kg 53
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1590
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 35
16
Strength to Weight: Bending, points 28
16
Thermal Diffusivity, mm2/s 9.9
13
Thermal Shock Resistance, points 29
13

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.034
Carbon (C), % 0.32 to 0.4
0 to 0.15
Chromium (Cr), % 0.9 to 1.2
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 95.6 to 97.2
95.9 to 99.985
Manganese (Mn), % 0.5 to 0.8
0 to 1.6
Molybdenum (Mo), % 0.15 to 0.3
0 to 0.13
Nickel (Ni), % 0.9 to 1.2
0 to 0.35
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.017
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.55
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.1