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EN 1.0254 Steel vs. SAE-AISI A8 Steel

Both EN 1.0254 steel and SAE-AISI A8 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.0254 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 430
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
37
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
8.5
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5
2.3
Embodied Energy, MJ/kg 19
31
Embodied Water, L/kg 47
73

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
25 to 68
Strength to Weight: Bending, points 16
22 to 44
Thermal Diffusivity, mm2/s 13
9.9
Thermal Shock Resistance, points 14
22 to 62

Alloy Composition

Carbon (C), % 0 to 0.16
0.5 to 0.6
Chromium (Cr), % 0 to 0.3
4.8 to 5.5
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 97.2 to 100
88.5 to 91.9
Manganese (Mn), % 0 to 1.2
0 to 0.5
Molybdenum (Mo), % 0 to 0.080
1.2 to 1.7
Nickel (Ni), % 0 to 0.3
0 to 0.3
Niobium (Nb), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.35
0.75 to 1.1
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.040
0
Tungsten (W), % 0
1.0 to 1.5
Vanadium (V), % 0 to 0.020
0