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SAE-AISI 1023 Steel vs. SAE-AISI 8655 Steel

Both SAE-AISI 1023 steel and SAE-AISI 8655 steel are iron alloys. They have a very high 98% 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 1023 steel and the bottom bar is SAE-AISI 8655 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 140
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 29
23
Fatigue Strength, MPa 180 to 270
290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 280 to 300
390
Tensile Strength: Ultimate (UTS), MPa 430 to 480
620
Tensile Strength: Yield (Proof), MPa 240 to 410
410

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 45
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 100
130
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 450
440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 17
22
Strength to Weight: Bending, points 16 to 17
21
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 14 to 15
18

Alloy Composition

Carbon (C), % 0.2 to 0.25
0.51 to 0.59
Chromium (Cr), % 0
0.4 to 0.6
Iron (Fe), % 99.06 to 99.5
96.4 to 97.6
Manganese (Mn), % 0.3 to 0.6
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0
0.4 to 0.7
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