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EN 1.8505 Steel vs. SAE-AISI 1055 Steel

Both EN 1.8505 steel and SAE-AISI 1055 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.8505 steel and the bottom bar is SAE-AISI 1055 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
11 to 14
Fatigue Strength, MPa 540
260 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 630
440 to 450
Tensile Strength: Ultimate (UTS), MPa 1050
730 to 750
Tensile Strength: Yield (Proof), MPa 860
400 to 630

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 22
18
Embodied Water, L/kg 65
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
80 to 85
Resilience: Unit (Modulus of Resilience), kJ/m3 1950
440 to 1070
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 37
26
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 31
23 to 24

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.28 to 0.35
0.5 to 0.6
Chromium (Cr), % 1.5 to 1.8
0
Iron (Fe), % 95.4 to 97.1
98.4 to 98.9
Manganese (Mn), % 0.4 to 0.7
0.6 to 0.9
Molybdenum (Mo), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0 to 0.050