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EN 1.0411 Steel vs. SAE-AISI 1078 Steel

Both EN 1.0411 steel and SAE-AISI 1078 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0411 steel and the bottom bar is SAE-AISI 1078 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 170
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 26
11 to 14
Fatigue Strength, MPa 200 to 320
270 to 350
Poisson's Ratio 0.29
0.29
Reduction in Area, % 60 to 74
34 to 45
Shear Modulus, GPa 73
72
Shear Strength, MPa 300 to 350
440 to 470
Tensile Strength: Ultimate (UTS), MPa 420 to 570
730 to 780
Tensile Strength: Yield (Proof), MPa 270 to 480
430 to 570

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 52
49
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 47
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 140
77 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 610
490 to 860
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 20
26 to 28
Strength to Weight: Bending, points 16 to 20
23 to 24
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 13 to 18
25 to 26

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0.18 to 0.22
0.72 to 0.85
Iron (Fe), % 98.7 to 99.1
98.5 to 99
Manganese (Mn), % 0.7 to 0.9
0.3 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.025
0 to 0.050

Comparable Variants