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SAE-AISI 1552 Steel vs. SAE-AISI 1046 Steel

Both SAE-AISI 1552 steel and SAE-AISI 1046 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1552 steel and the bottom bar is SAE-AISI 1046 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
14 to 17
Fatigue Strength, MPa 290 to 400
240 to 390
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 46
39 to 50
Shear Modulus, GPa 72
72
Shear Strength, MPa 460 to 510
410 to 450
Tensile Strength: Ultimate (UTS), MPa 760 to 840
660 to 740
Tensile Strength: Yield (Proof), MPa 460 to 650
370 to 610

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 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
11
Electrical Conductivity: Equal Weight (Specific), % IACS 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 47
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 98
91 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1130
360 to 990
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 30
23 to 26
Strength to Weight: Bending, points 24 to 25
22 to 23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 26 to 29
23 to 25

Alloy Composition

Carbon (C), % 0.47 to 0.55
0.43 to 0.5
Iron (Fe), % 97.9 to 98.3
98.4 to 98.9
Manganese (Mn), % 1.2 to 1.5
0.7 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Sulfur (S), % 0 to 0.050
0 to 0.050

Comparable Variants