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EN 1.6220 Steel vs. EN 1.6554 Steel

Both EN 1.6220 steel and EN 1.6554 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.6220 steel and the bottom bar is EN 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
230 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23 to 25
17 to 21
Fatigue Strength, MPa 240 to 250
380 to 520
Impact Strength: V-Notched Charpy, J 49 to 57
30 to 45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 550 to 580
780 to 930
Tensile Strength: Yield (Proof), MPa 340
550 to 790

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 52
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
3.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 48
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 310
810 to 1650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 20
27 to 33
Strength to Weight: Bending, points 19 to 20
24 to 27
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 16 to 17
23 to 27

Alloy Composition

Carbon (C), % 0.17 to 0.23
0.23 to 0.28
Chromium (Cr), % 0
0.7 to 0.9
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 96.7 to 98.8
94.6 to 97.3
Manganese (Mn), % 1.0 to 1.6
0.6 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.8
1.0 to 2.0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0 to 0.030