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SAE-AISI T4 Steel vs. EN 1.3558 Steel

Both SAE-AISI T4 steel and EN 1.3558 steel are iron alloys. They have a moderately high 94% 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 SAE-AISI T4 steel and the bottom bar is EN 1.3558 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
770

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Melting Completion (Liquidus), °C 1810
1810
Melting Onset (Solidus), °C 1750
1760
Specific Heat Capacity, J/kg-K 410
410
Thermal Conductivity, W/m-K 21
20
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 55
45
Density, g/cm3 9.4
9.3
Embodied Carbon, kg CO2/kg material 8.5
8.4
Embodied Energy, MJ/kg 130
130
Embodied Water, L/kg 120
90

Common Calculations

PREN (Pitting Resistance) 37
35
Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 21
21
Strength to Weight: Axial, points 24 to 64
23
Strength to Weight: Bending, points 20 to 39
20
Thermal Diffusivity, mm2/s 5.4
5.3
Thermal Shock Resistance, points 24 to 64
22

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.7 to 0.8
Chromium (Cr), % 3.8 to 4.5
3.9 to 4.3
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 66.3 to 72.3
73.7 to 77.6
Manganese (Mn), % 0.1 to 0.4
0 to 0.4
Molybdenum (Mo), % 0.4 to 1.0
0 to 0.6
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.2 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 17.5 to 19
17.5 to 19
Vanadium (V), % 0.8 to 1.2
1.0 to 1.3