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SAE-AISI 1050 Steel vs. SAE-AISI 1547 Steel

Both SAE-AISI 1050 steel and SAE-AISI 1547 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1050 steel and the bottom bar is SAE-AISI 1547 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
11 to 17
Fatigue Strength, MPa 260 to 400
270 to 430
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 45
32 to 40
Shear Modulus, GPa 72
73
Shear Strength, MPa 430 to 470
440 to 480
Tensile Strength: Ultimate (UTS), MPa 690 to 790
740 to 800
Tensile Strength: Yield (Proof), MPa 390 to 650
400 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 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.2

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 18
19
Embodied Water, L/kg 46
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
80 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1130
430 to 1280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 28
26 to 28
Strength to Weight: Bending, points 22 to 24
23 to 24
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 22 to 25
23 to 25

Alloy Composition

Carbon (C), % 0.48 to 0.55
0.43 to 0.51
Iron (Fe), % 98.5 to 98.9
97.8 to 98.2
Manganese (Mn), % 0.6 to 0.9
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