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EN 1.8505 Steel vs. SAE-AISI A8 Steel

Both EN 1.8505 steel and SAE-AISI A8 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.8505 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 73
74
Tensile Strength: Ultimate (UTS), MPa 1050
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
37
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
8.5
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.3
Embodied Energy, MJ/kg 22
31
Embodied Water, L/kg 65
73

Common Calculations

PREN (Pitting Resistance) 2.6
12
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 37
25 to 68
Strength to Weight: Bending, points 30
22 to 44
Thermal Diffusivity, mm2/s 11
9.9
Thermal Shock Resistance, points 31
22 to 62

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.28 to 0.35
0.5 to 0.6
Chromium (Cr), % 1.5 to 1.8
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 95.4 to 97.1
88.5 to 91.9
Manganese (Mn), % 0.4 to 0.7
0 to 0.5
Molybdenum (Mo), % 0.2 to 0.4
1.2 to 1.7
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0.75 to 1.1
Sulfur (S), % 0 to 0.035
0 to 0.030
Tungsten (W), % 0
1.0 to 1.5