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EN 1.5525 Steel vs. EN 1.5501 Steel

Both EN 1.5525 steel and EN 1.5501 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5525 steel and the bottom bar is EN 1.5501 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
120 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
12 to 17
Fatigue Strength, MPa 210 to 310
180 to 270
Poisson's Ratio 0.29
0.29
Reduction in Area, % 62 to 73
63 to 73
Shear Modulus, GPa 73
73
Shear Strength, MPa 310 to 350
270 to 310
Tensile Strength: Ultimate (UTS), MPa 440 to 1440
390 to 510
Tensile Strength: Yield (Proof), MPa 300 to 490
260 to 420

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
52
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.1

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 44 to 240
40 to 83
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 640
190 to 460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 51
14 to 18
Strength to Weight: Bending, points 16 to 36
15 to 18
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 13 to 42
11 to 15

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0.00080 to 0.0050
Carbon (C), % 0.18 to 0.23
0.13 to 0.16
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 97.7 to 98.9
98.4 to 99.269
Manganese (Mn), % 0.9 to 1.2
0.6 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.025

Comparable Variants