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EN 1.5402 Steel vs. SAE-AISI 1055 Steel

Both EN 1.5402 steel and SAE-AISI 1055 steel are iron alloys. They have a very high 99% of their average alloy composition in common. 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 EN 1.5402 steel and the bottom bar is SAE-AISI 1055 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
11 to 14
Fatigue Strength, MPa 260
260 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 370
440 to 450
Tensile Strength: Ultimate (UTS), MPa 580
730 to 750
Tensile Strength: Yield (Proof), MPa 370
400 to 630

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1470
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 7.2
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 22
18
Embodied Water, L/kg 49
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
80 to 85
Resilience: Unit (Modulus of Resilience), kJ/m3 360
440 to 1070
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 17
23 to 24

Alloy Composition

Carbon (C), % 0 to 0.18
0.5 to 0.6
Iron (Fe), % 97.3 to 98.7
98.4 to 98.9
Manganese (Mn), % 0.9 to 1.4
0.6 to 0.9
Molybdenum (Mo), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Vanadium (V), % 0.040 to 0.080
0