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EN 1.7375 Steel vs. EN 1.8523 Steel

Both EN 1.7375 steel and EN 1.8523 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7375 steel and the bottom bar is EN 1.8523 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
15
Fatigue Strength, MPa 270
530
Impact Strength: V-Notched Charpy, J 80
36
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Shear Strength, MPa 380
610
Tensile Strength: Ultimate (UTS), MPa 620
1000
Tensile Strength: Yield (Proof), MPa 400
800

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 460
480
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
4.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
2.2
Embodied Energy, MJ/kg 23
31
Embodied Water, L/kg 59
64

Common Calculations

PREN (Pitting Resistance) 5.6
6.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 420
1700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
36
Strength to Weight: Bending, points 20
28
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 18
29

Alloy Composition

Aluminum (Al), % 0.010 to 0.040
0
Carbon (C), % 0.1 to 0.15
0.35 to 0.45
Chromium (Cr), % 2.0 to 2.5
3.0 to 3.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 94.5 to 96.7
93.5 to 95.7
Manganese (Mn), % 0.3 to 0.8
0.4 to 0.7
Molybdenum (Mo), % 0.9 to 1.1
0.8 to 1.1
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.035
Vanadium (V), % 0
0.15 to 0.25