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EN 1.5525 Steel vs. SAE-AISI 1541 Steel

Both EN 1.5525 steel and SAE-AISI 1541 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 SAE-AISI 1541 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
11 to 17
Fatigue Strength, MPa 210 to 310
260 to 420
Poisson's Ratio 0.29
0.29
Reduction in Area, % 62 to 73
34 to 51
Shear Modulus, GPa 73
73
Shear Strength, MPa 310 to 350
440 to 480
Tensile Strength: Ultimate (UTS), MPa 440 to 1440
720 to 790
Tensile Strength: Yield (Proof), MPa 300 to 490
390 to 680

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
12

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 240
78 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 640
410 to 1250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 51
25 to 28
Strength to Weight: Bending, points 16 to 36
23 to 24
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 13 to 42
23 to 25

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.18 to 0.23
0.36 to 0.44
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.7 to 98.9
97.8 to 98.3
Manganese (Mn), % 0.9 to 1.2
1.4 to 1.7
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0 to 0.050

Comparable Variants