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EN 1.8523 Steel vs. EN 1.8519 Steel

Both EN 1.8523 steel and EN 1.8519 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.8523 steel and the bottom bar is EN 1.8519 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
360
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15
10
Fatigue Strength, MPa 530
630
Impact Strength: V-Notched Charpy, J 36
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 610
710
Tensile Strength: Ultimate (UTS), MPa 1000
1200
Tensile Strength: Yield (Proof), MPa 800
1030

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 480
450
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
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
3.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.9
Embodied Energy, MJ/kg 31
26
Embodied Water, L/kg 64
58

Common Calculations

PREN (Pitting Resistance) 6.4
3.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1700
2790
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 36
43
Strength to Weight: Bending, points 28
32
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 29
35

Alloy Composition

Carbon (C), % 0.35 to 0.45
0.27 to 0.34
Chromium (Cr), % 3.0 to 3.5
2.3 to 2.7
Iron (Fe), % 93.5 to 95.7
95.7 to 97.1
Manganese (Mn), % 0.4 to 0.7
0.4 to 0.7
Molybdenum (Mo), % 0.8 to 1.1
0.15 to 0.25
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
Vanadium (V), % 0.15 to 0.25
0.1 to 0.2