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EN 1.5522 Steel vs. SAE-AISI 1548 Steel

Both EN 1.5522 steel and SAE-AISI 1548 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5522 steel and the bottom bar is SAE-AISI 1548 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 190
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
11 to 16
Fatigue Strength, MPa 210 to 330
270 to 430
Poisson's Ratio 0.29
0.29
Reduction in Area, % 59 to 69
31 to 39
Shear Modulus, GPa 73
72
Shear Strength, MPa 320 to 380
440 to 500
Tensile Strength: Ultimate (UTS), MPa 450 to 1490
730 to 830
Tensile Strength: Yield (Proof), MPa 300 to 520
420 to 690

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 51
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
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 47
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 250
79 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 720
470 to 1280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 53
26 to 30
Strength to Weight: Bending, points 17 to 37
23 to 25
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 13 to 44
23 to 27

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.24
0.44 to 0.52
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98 to 98.9
98 to 98.5
Manganese (Mn), % 0.9 to 1.2
1.1 to 1.4
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