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EN 1.6368 Steel vs. EN 1.6554 Steel

Both EN 1.6368 steel and EN 1.6554 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.6368 steel and the bottom bar is EN 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
230 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
17 to 21
Fatigue Strength, MPa 310 to 330
380 to 520
Impact Strength: V-Notched Charpy, J 43 to 46
30 to 45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 660 to 690
780 to 930
Tensile Strength: Yield (Proof), MPa 460 to 490
550 to 790

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.7

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 650
810 to 1650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 24
27 to 33
Strength to Weight: Bending, points 21 to 22
24 to 27
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 20
23 to 27

Alloy Composition

Aluminum (Al), % 0.015 to 0.040
0
Carbon (C), % 0 to 0.17
0.23 to 0.28
Chromium (Cr), % 0 to 0.3
0.7 to 0.9
Copper (Cu), % 0.5 to 0.8
0 to 0.3
Iron (Fe), % 95.1 to 97.2
94.6 to 97.3
Manganese (Mn), % 0.8 to 1.2
0.6 to 0.9
Molybdenum (Mo), % 0.25 to 0.5
0.2 to 0.3
Nickel (Ni), % 1.0 to 1.3
1.0 to 2.0
Niobium (Nb), % 0.015 to 0.045
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.25 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.025
Vanadium (V), % 0
0 to 0.030