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EN 1.0031 Steel vs. SAE-AISI T4 Steel

Both EN 1.0031 steel and SAE-AISI T4 steel are iron alloys. They have 70% 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 T4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 310
800 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1470
1810
Melting Onset (Solidus), °C 1420
1750
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 53
21
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
55
Density, g/cm3 7.9
9.4
Embodied Carbon, kg CO2/kg material 1.4
8.5
Embodied Energy, MJ/kg 18
130
Embodied Water, L/kg 45
120

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 11
24 to 64
Strength to Weight: Bending, points 13
20 to 39
Thermal Diffusivity, mm2/s 14
5.4
Thermal Shock Resistance, points 9.8
24 to 64

Alloy Composition

Carbon (C), % 0 to 0.1
0.7 to 0.8
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
66.3 to 72.3
Manganese (Mn), % 0 to 0.7
0.1 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
17.5 to 19
Vanadium (V), % 0
0.8 to 1.2