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EN 1.0031 Steel vs. SAE-AISI T8 Steel

Both EN 1.0031 steel and SAE-AISI T8 steel are iron alloys. They have 73% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.0031 steel and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 310
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1470
1730
Melting Onset (Solidus), °C 1420
1670
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 53
18
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
45
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 1.4
10
Embodied Energy, MJ/kg 18
160
Embodied Water, L/kg 45
120

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 11
24 to 66
Strength to Weight: Bending, points 13
21 to 41
Thermal Diffusivity, mm2/s 14
4.8
Thermal Shock Resistance, points 9.8
24 to 66

Alloy Composition

Carbon (C), % 0 to 0.1
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.8 to 100
69.3 to 75.4
Manganese (Mn), % 0 to 0.7
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.35
0.2 to 0.4
Sulfur (S), % 0 to 0.045
0 to 0.030
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 0
1.8 to 2.4