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SAE-AISI 1547 Steel vs. SAE-AISI 5120 Steel

Both SAE-AISI 1547 steel and SAE-AISI 5120 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1547 steel and the bottom bar is SAE-AISI 5120 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
16
Fatigue Strength, MPa 270 to 430
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 440 to 480
310
Tensile Strength: Ultimate (UTS), MPa 740 to 800
500
Tensile Strength: Yield (Proof), MPa 400 to 690
320

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
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
47
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.1
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
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 110
71
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1280
280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 28
18
Strength to Weight: Bending, points 23 to 24
18
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 23 to 25
16

Alloy Composition

Carbon (C), % 0.43 to 0.51
0.17 to 0.22
Chromium (Cr), % 0
0.7 to 0.9
Iron (Fe), % 97.8 to 98.2
97.6 to 98.3
Manganese (Mn), % 1.4 to 1.7
0.7 to 0.9
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.040