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EN 1.6553 Steel vs. EN 1.6554 Steel

Both EN 1.6553 steel and EN 1.6554 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.6553 steel and the bottom bar is EN 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 240
230 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 21
17 to 21
Fatigue Strength, MPa 330 to 460
380 to 520
Impact Strength: V-Notched Charpy, J 30
30 to 45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 710 to 800
780 to 930
Tensile Strength: Yield (Proof), MPa 470 to 670
550 to 790

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 39
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 2.7
3.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.7
Embodied Energy, MJ/kg 21
22
Embodied Water, L/kg 51
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 1190
810 to 1650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 28
27 to 33
Strength to Weight: Bending, points 23 to 24
24 to 27
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 21 to 23
23 to 27

Alloy Composition

Carbon (C), % 0.23 to 0.28
0.23 to 0.28
Chromium (Cr), % 0.4 to 0.8
0.7 to 0.9
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 95.6 to 98.2
94.6 to 97.3
Manganese (Mn), % 0.6 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0.15 to 0.3
0.2 to 0.3
Nickel (Ni), % 0.4 to 0.8
1.0 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.8
0 to 0.6
Sulfur (S), % 0 to 0.025
0 to 0.025
Vanadium (V), % 0 to 0.030
0 to 0.030