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EN 1.8872 Steel vs. EN 1.5450 Steel

Both EN 1.8872 steel and EN 1.5450 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.8872 steel and the bottom bar is EN 1.5450 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
19
Fatigue Strength, MPa 310
310
Impact Strength: V-Notched Charpy, J 90
38
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380
380
Tensile Strength: Ultimate (UTS), MPa 610
620
Tensile Strength: Yield (Proof), MPa 450
460

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
2.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 22
20
Embodied Water, L/kg 50
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 530
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 10
13
Thermal Shock Resistance, points 18
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.060
Boron (B), % 0 to 0.0050
0.0020 to 0.0060
Carbon (C), % 0 to 0.18
0.060 to 0.1
Chromium (Cr), % 0 to 0.5
0 to 0.2
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 95.1 to 100
97.6 to 98.8
Manganese (Mn), % 0 to 1.7
0.6 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.4 to 0.5
Nickel (Ni), % 0 to 1.0
0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.5
0.1 to 0.35
Sulfur (S), % 0 to 0.0080
0 to 0.010
Titanium (Ti), % 0 to 0.030
0 to 0.060
Vanadium (V), % 0 to 0.080
0
Zirconium (Zr), % 0 to 0.050
0