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EN 1.8523 Steel vs. EN 1.7365 Steel

Both EN 1.8523 steel and EN 1.7365 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 (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.8523 steel and the bottom bar is EN 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15
18
Fatigue Strength, MPa 530
320
Impact Strength: V-Notched Charpy, J 36
31
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Tensile Strength: Ultimate (UTS), MPa 1000
700
Tensile Strength: Yield (Proof), MPa 800
470

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 480
510
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
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
4.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.8
Embodied Energy, MJ/kg 31
24
Embodied Water, L/kg 64
70

Common Calculations

PREN (Pitting Resistance) 6.4
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1700
580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 36
25
Strength to Weight: Bending, points 28
22
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 29
20

Alloy Composition

Carbon (C), % 0.35 to 0.45
0.12 to 0.19
Chromium (Cr), % 3.0 to 3.5
4.0 to 6.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 93.5 to 95.7
91.2 to 94.9
Manganese (Mn), % 0.4 to 0.7
0.5 to 0.8
Molybdenum (Mo), % 0.8 to 1.1
0.45 to 0.65
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.035
0 to 0.025
Vanadium (V), % 0.15 to 0.25
0 to 0.050