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EN 1.5502 Steel vs. EN 1.1221 Steel

Both EN 1.5502 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 1.5502 steel and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 160
210 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 20
10 to 21
Fatigue Strength, MPa 190 to 290
240 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 280 to 330
450 to 520
Tensile Strength: Ultimate (UTS), MPa 400 to 1380
730 to 870
Tensile Strength: Yield (Proof), MPa 270 to 440
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 52
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 41 to 210
67 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 520
410 to 800
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 14 to 49
26 to 31
Strength to Weight: Bending, points 15 to 35
23 to 26
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 12 to 40
23 to 28

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.15 to 0.2
0.57 to 0.65
Chromium (Cr), % 0 to 0.3
0 to 0.4
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98 to 99.249
97.1 to 98.8
Manganese (Mn), % 0.6 to 0.9
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