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EN 1.8523 Steel vs. EN 1.7390 Steel

Both EN 1.8523 steel and EN 1.7390 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 33 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 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15
16
Fatigue Strength, MPa 530
310
Impact Strength: V-Notched Charpy, J 36
46
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Shear Strength, MPa 610
440
Tensile Strength: Ultimate (UTS), MPa 1000
710
Tensile Strength: Yield (Proof), MPa 800
480

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
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.7
Embodied Energy, MJ/kg 31
23
Embodied Water, L/kg 64
69

Common Calculations

PREN (Pitting Resistance) 6.4
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1700
600
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
23
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 29
20

Alloy Composition

Carbon (C), % 0.35 to 0.45
0 to 0.18
Chromium (Cr), % 3.0 to 3.5
4.0 to 6.0
Iron (Fe), % 93.5 to 95.7
91.9 to 95.3
Manganese (Mn), % 0.4 to 0.7
0.3 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 0.4
Sulfur (S), % 0 to 0.035
0 to 0.015
Vanadium (V), % 0.15 to 0.25
0