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EN 1.3555 Steel vs. SAE-AISI A8 Steel

Both EN 1.3555 steel and SAE-AISI A8 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.3555 steel and the bottom bar is SAE-AISI A8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
74
Tensile Strength: Ultimate (UTS), MPa 770
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1500
1480
Melting Onset (Solidus), °C 1450
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 11
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
8.5
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.6
2.3
Embodied Energy, MJ/kg 81
31
Embodied Water, L/kg 90
73

Common Calculations

PREN (Pitting Resistance) 18
12
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
25 to 68
Strength to Weight: Bending, points 23
22 to 44
Thermal Shock Resistance, points 22
22 to 62

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.5 to 0.6
Chromium (Cr), % 3.9 to 4.3
4.8 to 5.5
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 85.4 to 87.7
88.5 to 91.9
Manganese (Mn), % 0.15 to 0.35
0 to 0.5
Molybdenum (Mo), % 4.0 to 4.5
1.2 to 1.7
Nickel (Ni), % 3.2 to 3.6
0 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.1 to 0.25
0.75 to 1.1
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0 to 0.15
1.0 to 1.5
Vanadium (V), % 1.0 to 1.3
0