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EN 1.3551 Steel vs. SAE-AISI S6 Steel

Both EN 1.3551 steel and SAE-AISI S6 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.3551 steel and the bottom bar is SAE-AISI S6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 720
670 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1490
1430
Melting Onset (Solidus), °C 1450
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 36
41
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
3.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.9
2.3
Embodied Energy, MJ/kg 71
33
Embodied Water, L/kg 82
56

Common Calculations

PREN (Pitting Resistance) 18
2.7
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
24 to 70
Strength to Weight: Bending, points 23
22 to 45
Thermal Diffusivity, mm2/s 9.8
11
Thermal Shock Resistance, points 21
22 to 64

Alloy Composition

Carbon (C), % 0.77 to 0.85
0.4 to 0.5
Chromium (Cr), % 3.9 to 4.3
1.2 to 1.5
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 88.8 to 91.1
92.8 to 94.7
Manganese (Mn), % 0.15 to 0.35
1.2 to 1.5
Molybdenum (Mo), % 4.0 to 4.5
0.3 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
2.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0.2 to 0.4