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SAE-AISI 1055 Steel vs. EN 1.0254 Steel

Both SAE-AISI 1055 steel and EN 1.0254 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 (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1055 steel and the bottom bar is EN 1.0254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
27
Fatigue Strength, MPa 260 to 390
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 440 to 450
280
Tensile Strength: Ultimate (UTS), MPa 730 to 750
430
Tensile Strength: Yield (Proof), MPa 400 to 630
250

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
50
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.1
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 46
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 85
100
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1070
170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
15
Strength to Weight: Bending, points 23
16
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 23 to 24
14

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.16
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98.4 to 98.9
97.2 to 100
Manganese (Mn), % 0.6 to 0.9
0 to 1.2
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.020
Titanium (Ti), % 0
0 to 0.040
Vanadium (V), % 0
0 to 0.020