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EN 1.8550 Steel vs. SAE-AISI T5 Steel

Both EN 1.8550 steel and SAE-AISI T5 steel are iron alloys. They have 67% 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 EN 1.8550 steel and the bottom bar is SAE-AISI T5 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 1000
860 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1450
1810
Melting Onset (Solidus), °C 1410
1750
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 40
21
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
60
Density, g/cm3 7.8
9.4
Embodied Carbon, kg CO2/kg material 1.7
11
Embodied Energy, MJ/kg 23
170
Embodied Water, L/kg 67
140

Common Calculations

PREN (Pitting Resistance) 2.3
37
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 36
25 to 63
Strength to Weight: Bending, points 29
21 to 39
Thermal Diffusivity, mm2/s 11
5.5
Thermal Shock Resistance, points 29
26 to 66

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0.75 to 0.85
Chromium (Cr), % 1.5 to 1.8
3.8 to 5.0
Cobalt (Co), % 0
7.0 to 9.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 94.4 to 96.3
60.6 to 68.3
Manganese (Mn), % 0.4 to 0.7
0.2 to 0.4
Molybdenum (Mo), % 0.15 to 0.25
0.5 to 1.3
Nickel (Ni), % 0.85 to 1.2
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0.2 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.030
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.8 to 2.4