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EN 1.6771 Steel vs. EN 1.8523 Steel

Both EN 1.6771 steel and EN 1.8523 steel are iron alloys. They have a very high 96% 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 1.6771 steel and the bottom bar is EN 1.8523 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 350
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 8.7
15
Fatigue Strength, MPa 440 to 680
530
Impact Strength: V-Notched Charpy, J 20 to 32
36
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 930 to 1180
1000
Tensile Strength: Yield (Proof), MPa 740 to 1140
800

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 440
480
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 46
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
4.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.9
2.2
Embodied Energy, MJ/kg 25
31
Embodied Water, L/kg 58
64

Common Calculations

PREN (Pitting Resistance) 2.5
6.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 93
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1460 to 3450
1700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33 to 41
36
Strength to Weight: Bending, points 27 to 31
28
Thermal Diffusivity, mm2/s 13
10
Thermal Shock Resistance, points 27 to 35
29

Alloy Composition

Carbon (C), % 0.27 to 0.33
0.35 to 0.45
Chromium (Cr), % 0.8 to 1.2
3.0 to 3.5
Iron (Fe), % 92.2 to 95
93.5 to 95.7
Manganese (Mn), % 0.6 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0.3 to 0.6
0.8 to 1.1
Nickel (Ni), % 3.0 to 4.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.035
Vanadium (V), % 0
0.15 to 0.25