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EN 1.3551 Steel vs. EN 1.6368 Steel

Both EN 1.3551 steel and EN 1.6368 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3551 steel and the bottom bar is EN 1.6368 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 720
660 to 690

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 530
410
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 36
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
3.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.9
1.7
Embodied Energy, MJ/kg 71
22
Embodied Water, L/kg 82
53

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
23 to 24
Strength to Weight: Bending, points 23
21 to 22
Thermal Diffusivity, mm2/s 9.8
11
Thermal Shock Resistance, points 21
20

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.040
Carbon (C), % 0.77 to 0.85
0 to 0.17
Chromium (Cr), % 3.9 to 4.3
0 to 0.3
Copper (Cu), % 0 to 0.3
0.5 to 0.8
Iron (Fe), % 88.8 to 91.1
95.1 to 97.2
Manganese (Mn), % 0.15 to 0.35
0.8 to 1.2
Molybdenum (Mo), % 4.0 to 4.5
0.25 to 0.5
Nickel (Ni), % 0
1.0 to 1.3
Niobium (Nb), % 0
0.015 to 0.045
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0.25 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0