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EN 1.5450 Steel vs. EN 1.8864 Steel

Both EN 1.5450 steel and EN 1.8864 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5450 steel and the bottom bar is EN 1.8864 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
22
Fatigue Strength, MPa 310
320
Impact Strength: V-Notched Charpy, J 38
110
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380
380
Tensile Strength: Ultimate (UTS), MPa 620
610
Tensile Strength: Yield (Proof), MPa 460
460

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 550
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 13
10
Thermal Shock Resistance, points 18
18

Alloy Composition

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