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SAE-AISI 1524 Steel vs. SAE-AISI 1548 Steel

Both SAE-AISI 1524 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 SAE-AISI 1524 steel and the bottom bar is SAE-AISI 1548 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 22
11 to 16
Fatigue Strength, MPa 230 to 340
270 to 430
Poisson's Ratio 0.29
0.29
Reduction in Area, % 39 to 48
31 to 39
Shear Modulus, GPa 73
72
Shear Strength, MPa 360 to 390
440 to 500
Tensile Strength: Ultimate (UTS), MPa 570 to 650
730 to 830
Tensile Strength: Yield (Proof), MPa 320 to 540
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 52
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
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 48
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
79 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
470 to 1280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 23
26 to 30
Strength to Weight: Bending, points 19 to 21
23 to 25
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 18 to 21
23 to 27

Alloy Composition

Carbon (C), % 0.19 to 0.25
0.44 to 0.52
Iron (Fe), % 98 to 98.5
98 to 98.5
Manganese (Mn), % 1.4 to 1.7
1.1 to 1.4
Phosphorus (P), % 0 to 0.040
0 to 0.040
Sulfur (S), % 0 to 0.050
0 to 0.050

Comparable Variants