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EN 1.1221 Steel vs. EN 1.3555 Steel

Both EN 1.1221 steel and EN 1.3555 steel are iron alloys. They have 88% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.1221 steel and the bottom bar is EN 1.3555 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 250
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
75
Tensile Strength: Ultimate (UTS), MPa 730 to 870
770

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
540
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
5.6
Embodied Energy, MJ/kg 19
81
Embodied Water, L/kg 47
90

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 31
27
Strength to Weight: Bending, points 23 to 26
23
Thermal Shock Resistance, points 23 to 28
22

Alloy Composition

Carbon (C), % 0.57 to 0.65
0.1 to 0.15
Chromium (Cr), % 0 to 0.4
3.9 to 4.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 97.1 to 98.8
85.4 to 87.7
Manganese (Mn), % 0.6 to 0.9
0.15 to 0.35
Molybdenum (Mo), % 0 to 0.1
4.0 to 4.5
Nickel (Ni), % 0 to 0.4
3.2 to 3.6
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 0.4
0.1 to 0.25
Sulfur (S), % 0 to 0.035
0 to 0.010
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
1.0 to 1.3