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EN 1.5520 Steel vs. EN 1.0234 Steel

Both EN 1.5520 steel and EN 1.0234 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5520 steel and the bottom bar is EN 1.0234 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 170
100 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
12 to 29
Fatigue Strength, MPa 210 to 300
170 to 270
Poisson's Ratio 0.29
0.29
Reduction in Area, % 62 to 75
64 to 78
Shear Modulus, GPa 73
73
Shear Strength, MPa 290 to 340
260 to 300
Tensile Strength: Ultimate (UTS), MPa 410 to 1410
350 to 480
Tensile Strength: Yield (Proof), MPa 300 to 480
220 to 410

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
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 48
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 230
36 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 600
130 to 440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 50
12 to 17
Strength to Weight: Bending, points 16 to 36
14 to 17
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 12 to 41
11 to 15

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.15 to 0.2
0.13 to 0.17
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.7 to 98.9
99.02 to 99.5
Manganese (Mn), % 0.9 to 1.2
0.35 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.1
Sulfur (S), % 0 to 0.025
0 to 0.025

Comparable Variants