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EN 1.5520 Steel vs. SAE-AISI 1118 Steel

Both EN 1.5520 steel and SAE-AISI 1118 steel are iron alloys. Their average alloy composition is basically identical. There are 31 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 1.5520 steel and the bottom bar is SAE-AISI 1118 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 170
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
13
Fatigue Strength, MPa 210 to 300
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 290 to 340
300
Tensile Strength: Ultimate (UTS), MPa 410 to 1410
490
Tensile Strength: Yield (Proof), MPa 300 to 480
410

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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 50
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 48
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 230
61
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 600
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 50
17
Strength to Weight: Bending, points 16 to 36
18
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 12 to 41
15

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.15 to 0.2
0.14 to 0.2
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.7 to 98.9
98 to 98.5
Manganese (Mn), % 0.9 to 1.2
1.3 to 1.6
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0.080 to 0.13