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SAE-AISI 1026 Steel vs. SAE-AISI 5140 Steel

Both SAE-AISI 1026 steel and SAE-AISI 5140 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 1026 steel and the bottom bar is SAE-AISI 5140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
170 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 27
12 to 29
Fatigue Strength, MPa 200 to 310
220 to 570
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 320 to 340
360 to 600
Tensile Strength: Ultimate (UTS), MPa 500 to 550
560 to 970
Tensile Strength: Yield (Proof), MPa 270 to 470
290 to 840

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 52
45
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 46
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
76 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 580
220 to 1880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 20
20 to 34
Strength to Weight: Bending, points 18 to 19
19 to 28
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 16 to 18
16 to 29

Alloy Composition

Carbon (C), % 0.22 to 0.28
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 0.9
Iron (Fe), % 98.7 to 99.18
97.3 to 98.1
Manganese (Mn), % 0.6 to 0.9
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

Comparable Variants