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EN 1.5510 Steel vs. SAE-AISI 1055 Steel

Both EN 1.5510 steel and SAE-AISI 1055 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5510 steel and the bottom bar is SAE-AISI 1055 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 190
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
11 to 14
Fatigue Strength, MPa 220 to 330
260 to 390
Poisson's Ratio 0.29
0.29
Reduction in Area, % 62 to 72
34 to 45
Shear Modulus, GPa 73
72
Shear Strength, MPa 310 to 380
440 to 450
Tensile Strength: Ultimate (UTS), MPa 450 to 1600
730 to 750
Tensile Strength: Yield (Proof), MPa 310 to 520
400 to 630

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 51
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 47
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 46 to 260
80 to 85
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 710
440 to 1070
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 57
26
Strength to Weight: Bending, points 17 to 39
23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 13 to 47
23 to 24

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.25 to 0.3
0.5 to 0.6
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.9 to 99.149
98.4 to 98.9
Manganese (Mn), % 0.6 to 0.9
0.6 to 0.9
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0 to 0.050

Comparable Variants