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SAE-AISI T4 Steel vs. EN 1.8509 Steel

Both SAE-AISI T4 steel and EN 1.8509 steel are iron alloys. They have 72% of their average alloy composition in common. There are 22 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 SAE-AISI T4 steel and the bottom bar is EN 1.8509 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
1130

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1810
1450
Melting Onset (Solidus), °C 1750
1410
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 21
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
2.8
Density, g/cm3 9.4
7.8
Embodied Carbon, kg CO2/kg material 8.5
1.6
Embodied Energy, MJ/kg 130
22
Embodied Water, L/kg 120
65

Common Calculations

PREN (Pitting Resistance) 37
2.6
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 24 to 64
40
Strength to Weight: Bending, points 20 to 39
31
Thermal Diffusivity, mm2/s 5.4
10
Thermal Shock Resistance, points 24 to 64
33

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.7 to 0.8
0.38 to 0.45
Chromium (Cr), % 3.8 to 4.5
1.5 to 1.8
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 66.3 to 72.3
95.5 to 97.1
Manganese (Mn), % 0.1 to 0.4
0.4 to 0.7
Molybdenum (Mo), % 0.4 to 1.0
0.2 to 0.35
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 0.035
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0