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EN 1.6554 Steel vs. EN 1.3555 Steel

Both EN 1.6554 steel and EN 1.3555 steel are iron alloys. They have 90% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.6554 steel and the bottom bar is EN 1.3555 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 280
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 780 to 930
770

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
540
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
5.6
Embodied Energy, MJ/kg 22
81
Embodied Water, L/kg 53
90

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 33
27
Strength to Weight: Bending, points 24 to 27
23
Thermal Shock Resistance, points 23 to 27
22

Alloy Composition

Carbon (C), % 0.23 to 0.28
0.1 to 0.15
Chromium (Cr), % 0.7 to 0.9
3.9 to 4.3
Copper (Cu), % 0 to 0.3
0 to 0.1
Iron (Fe), % 94.6 to 97.3
85.4 to 87.7
Manganese (Mn), % 0.6 to 0.9
0.15 to 0.35
Molybdenum (Mo), % 0.2 to 0.3
4.0 to 4.5
Nickel (Ni), % 1.0 to 2.0
3.2 to 3.6
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 0.6
0.1 to 0.25
Sulfur (S), % 0 to 0.025
0 to 0.010
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0 to 0.030
1.0 to 1.3