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EN 1.3558 Steel vs. SAE-AISI 1078 Steel

Both EN 1.3558 steel and SAE-AISI 1078 steel are iron alloys. They have 77% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3558 steel and the bottom bar is SAE-AISI 1078 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 770
730 to 780

Thermal Properties

Latent Heat of Fusion, J/g 240
250
Maximum Temperature: Mechanical, °C 490
400
Melting Completion (Liquidus), °C 1810
1460
Melting Onset (Solidus), °C 1760
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 20
49
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 45
1.8
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.4
1.4
Embodied Energy, MJ/kg 130
18
Embodied Water, L/kg 90
45

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 23
26 to 28
Strength to Weight: Bending, points 20
23 to 24
Thermal Diffusivity, mm2/s 5.3
13
Thermal Shock Resistance, points 22
25 to 26

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.72 to 0.85
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 73.7 to 77.6
98.5 to 99
Manganese (Mn), % 0 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 0 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
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0