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EN 1.5522 Steel vs. EN 1.1221 Steel

Both EN 1.5522 steel and EN 1.1221 steel are iron alloys. Their average alloy composition is basically identical. 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 1.5522 steel and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 190
210 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
10 to 21
Fatigue Strength, MPa 210 to 330
240 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 320 to 380
450 to 520
Tensile Strength: Ultimate (UTS), MPa 450 to 1490
730 to 870
Tensile Strength: Yield (Proof), MPa 300 to 520
390 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
48
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 250
67 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 720
410 to 800
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 53
26 to 31
Strength to Weight: Bending, points 17 to 37
23 to 26
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 13 to 44
23 to 28

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.24
0.57 to 0.65
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98 to 98.9
97.1 to 98.8
Manganese (Mn), % 0.9 to 1.2
0.6 to 0.9
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035