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SAE-AISI 1074 Steel vs. SAE-AISI 1524 Steel

Both SAE-AISI 1074 steel and SAE-AISI 1524 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1074 steel and the bottom bar is SAE-AISI 1524 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
14 to 22
Fatigue Strength, MPa 290 to 350
230 to 340
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 45
39 to 48
Shear Modulus, GPa 72
73
Shear Strength, MPa 440 to 490
360 to 390
Tensile Strength: Ultimate (UTS), MPa 740 to 820
570 to 650
Tensile Strength: Yield (Proof), MPa 450 to 570
320 to 540

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 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
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 46
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 860
270 to 760
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 29
20 to 23
Strength to Weight: Bending, points 23 to 25
19 to 21
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 24 to 26
18 to 21

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.19 to 0.25
Iron (Fe), % 98.3 to 98.8
98 to 98.5
Manganese (Mn), % 0.5 to 0.8
1.4 to 1.7
Phosphorus (P), % 0 to 0.040
0 to 0.040
Sulfur (S), % 0 to 0.050
0 to 0.050

Comparable Variants