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EN 1.5538 Steel vs. EN 1.5450 Steel

Both EN 1.5538 steel and EN 1.5450 steel are iron alloys. Their average alloy composition is basically identical. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.5538 steel and the bottom bar is EN 1.5450 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 530 to 1810
620

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 51
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
2.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
20
Embodied Water, L/kg 48
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 64
22
Strength to Weight: Bending, points 19 to 42
20
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 16 to 53
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.060
Boron (B), % 0.00080 to 0.0050
0.0020 to 0.0060
Carbon (C), % 0.35 to 0.4
0.060 to 0.1
Chromium (Cr), % 0 to 0.3
0 to 0.2
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 97.2 to 98.5
97.6 to 98.8
Manganese (Mn), % 1.2 to 1.5
0.6 to 0.8
Molybdenum (Mo), % 0
0.4 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0.1 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0 to 0.060